View Filing Data

Print Document View Excel Document

Document And Entity Information - shares	9 Months Ended
Document And Entity Information - shares	Oct. 31, 2012	Dec. 05, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	REX AMERICAN RESOURCES Corp
Document Type	10-Q
Current Fiscal Year End Date	--01-31
Entity Common Stock, Shares Outstanding		8,157,254
Amendment Flag	false
Entity Central Index Key	0000744187
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Oct. 31, 2012
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Oct. 31, 2012	Jan. 31, 2012
Alternative Energy Segment [Member]
Current assets:
Total assets	$ 351,406	$ 367,029
Current liabilities:
Current portion of long-term debt	12,567	14,972
Long-term liabilities:
Long-term debt	95,117	107,706
Corporate and Other Segment [Member]
Current liabilities:
Current portion of long-term debt	267	250
Long-term liabilities:
Long-term debt	619	821
Cash and cash equivalents	68,105	75,013
Accounts receivable	17,765	12,784
Inventories	28,304	30,349
Refundable income taxes	895	1,816
Prepaid expenses and other	4,335	3,987
Deferred taxes, net	2,530	3,090
Total current assets	121,934	127,039
Property and equipment, net	227,811	240,084
Other assets	6,793	7,884
Equity method investments	61,072	61,679
Restricted investments and deposits	503	1,363
Total assets	418,113	438,049
Accounts payable, trade	10,108	6,985
Deferred income	950	1,864
Accrued real estate taxes	1,310	2,750
Accrued payroll and related items	740	2,882
Derivative financial instruments	1,843	1,694
Other current liabilities	5,029	5,844
Total current liabilities	32,814	37,241
Deferred taxes	5,201	4,642
Deferred income	250	552
Derivative financial instruments	1,383	2,541
Other long-term liabilities	2,530	2,703
Total long-term liabilities	105,100	118,965
REX shareholders’ equity:
Common stock	299	299
Paid-in capital	143,667	142,994
Retained earnings	326,471	324,323
Treasury stock	(219,011)	(215,105)
Total REX shareholders’ equity	251,426	252,511
Noncontrolling interests	28,773	29,332
Total equity	280,199	281,843
Total liabilities and equity	$ 418,113	$ 438,049

Consolidated Condensed Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Net sales and revenue	$ 178,950	$ 84,524	$ 483,122	$ 239,483
Cost of sales	175,303	75,506	467,015	225,960
Gross profit	3,647	9,018	16,107	13,523
Selling, general and administrative expenses	(2,995)	(2,344)	(9,190)	(6,616)
Equity in income of unconsolidated affiliates	1,542	6,284	1,503	15,827
Income from synthetic fuel investments				2,883
Interest income	42	92	132	364
Interest expense	(1,206)	(620)	(3,733)	(1,923)
Losses on derivative financial instruments, net	(140)	(501)	(366)	(1,190)
Income from continuing operations before income taxes	890	11,929	4,453	22,868
Provision for income taxes	(134)	(4,055)	(1,220)	(8,233)
Income from continuing operations	756	7,874	3,233	14,635
Income from discontinued operations, net of tax	107	186	361	856
Gain on disposal of discontinued operations, net of tax	30	267	80	425
Net income	893	8,327	3,674	15,916
Net income attributable to noncontrolling interests	(484)	(1,845)	(1,526)	(2,435)
Net income attributable to REX common shareholders	$ 409	$ 6,482	$ 2,148	$ 13,481
Weighted average shares outstanding – basic (in Shares)	8,226	9,205	8,311	9,385
Basic income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 0.03	$ 0.65	$ 0.21	$ 1.30
Basic income per share from discontinued operations attributable to REX common shareholders (in Dollars per share)	0.01	0.02	0.04	0.09
Basic income per share on disposal of discontinued operations attributable to REX common shareholders (in Dollars per share)	0.01	0.03	0.01	0.05
Basic net income per share attributable to REX common shareholders (in Dollars per share)	$ 0.05	$ 0.70	$ 0.26	$ 1.44
Weighted average shares outstanding – diluted (in Shares)	8,258	9,239	8,361	9,453
Diluted income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 0.03	$ 0.65	$ 0.21	$ 1.29
Diluted income per share from discontinued operations attributable to REX common shareholders (in Dollars per share)	0.01	0.02	0.04	0.09
Diluted income per share on disposal of discontinued operations attributable to REX common shareholders (in Dollars per share)	0.01	0.03	0.01	0.05
Diluted net income per share attributable to REX common shareholders (in Dollars per share)	$ 0.05	$ 0.70	$ 0.26	$ 1.43
Amounts attributable to REX common shareholders:
Income from continuing operations, net of tax	$ 272	$ 6,029	$ 1,707	$ 12,200
Income from discontinued operations, net of tax	137	453	441	1,281
Net income	$ 409	$ 6,482	$ 2,148	$ 13,481

Consolidated Condensed Statements Of Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance at Jan. 31, 2011	$ 299	$ (193,713)	$ 142,293	$ 296,053	$ 25,032	$ 269,964
Balance (in Shares) at Jan. 31, 2011	29,853	20,461
Net income				13,481	2,435	15,916
Treasury stock acquired		$ (24,410)				(24,410)
Treasury stock acquired (in Shares)		1,451
Noncontrolling interests distribution and other					(1,988)	(1,988)
Stock options and related tax effects		$ 4,066	86			4,152
Stock options and related tax effects (in Shares)		(436)
Balance at Oct. 31, 2011	$ 299	$ (214,057)	142,379	309,534	25,479	263,634
Balance (in Shares) at Oct. 31, 2011	29,853	21,476
Balance at Jan. 31, 2012	$ 299	$ (215,105)	142,994	324,323	29,332	281,843
Balance (in Shares) at Jan. 31, 2012	29,853	21,523
Net income				2,148	1,526	3,674
Treasury stock acquired		$ (4,905)				(4,905)
Treasury stock acquired (in Shares)		246
Noncontrolling interests distribution and other					(2,085)	(2,085)
Stock options and related tax effects		$ 999	673			1,672
Stock options and related tax effects (in Shares)		(99)
Balance at Oct. 31, 2012	$ 299	$ (219,011)	$ 143,667	$ 326,471	$ 28,773	$ 280,199
Balance (in Shares) at Oct. 31, 2012	29,853	21,670

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4K
-URI http://asc.fasb.org/extlink&oid=18733213&loc=SL4591552-111686

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=18733213&loc=SL4591551-111686

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A1, A4, A5
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

+ References + Details

- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References + Details

Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011
Cash flows from operating activities:
Net income including noncontrolling interests	$ 3,674	$ 15,916
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,430	8,206
Impairment charges	279	1,164
Income from equity method investments	(1,503)	(15,827)
Income from synthetic fuel investments		(2,883)
Loss (gain) on disposal of real estate and property and equipment	424	(634)
Dividends received from equity method investees	2,005	2,316
Deferred income	(1,429)	(3,273)
Derivative financial instruments	(1,009)	(738)
Deferred income tax	1,111	8,177
Changes in assets and liabilities:
Accounts receivable	(4,981)	2,318
Inventories	2,045	(2,266)
Other assets	1,513	9,486
Accounts payable, trade	3,030	(1,475)
Other liabilities	(4,357)	2,031
Net cash provided by operating activities	13,232	22,518
Cash flows from investing activities:
Capital expenditures	(2,533)	(720)
Proceeds from sale of synthetic fuel investment		2,883
Restricted investments	860
Proceeds from sale of real estate and property and equipment	2,272	3,436
Net cash provided by investing activities	599	5,599
Cash flows from financing activities:
Payments of long-term debt	(15,179)	(8,160)
Repayments of contingent consideration		(1,313)
Stock options exercised	358	317
Noncontrolling interests distribution and other	(2,085)	(1,988)
Treasury stock acquired	(3,833)	(21,224)
Net cash used in financing activities	(20,739)	(32,368)
Net decrease in cash and cash equivalents	(6,908)	(4,251)
Cash and cash equivalents, beginning of period	75,013	91,019
Cash and cash equivalents, end of period	68,105	86,768
Non cash financing activities - Cashless exercise of stock options	1,072	3,186
Non cash investing activities - Accrued capital expenditures	$ 93	$ 164

Consolidated Condensed Financial Statements

9 Months Ended

Oct. 31, 2012

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Note 1. Consolidated Condensed Financial Statements

The consolidated condensed financial statements included in this report have been prepared by the Company, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission and include, in the opinion of management, all adjustments necessary to state fairly the information set forth therein. Any such adjustments were of a normal recurring nature. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been omitted pursuant to such rules and regulations, although the Company believes that the disclosures are adequate to make the information presented not misleading. Financial information as of January 31, 2012 included in these financial statements has been derived from the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended January 31, 2012 (fiscal year 2011). It is suggested that these unaudited consolidated condensed financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended January 31, 2012. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the year.

Basis of Consolidation – The consolidated condensed financial statements in this report include the operating results and financial position of REX American Resources Corporation and its wholly and majority owned subsidiaries. The Company includes the results of operations of One Earth Energy, LLC (“One Earth”) in its Consolidated Condensed Statements of Operations on a delayed basis of one month. Effective November 1, 2011, the Company acquired a majority ownership interest in NuGen Energy, LLC (“NuGen”), and have included the results of operations in its Consolidated Condensed Statements of Operations on a prospective basis.

Nature of Operations – The Company operates in two reportable segments, alternative energy and real estate. The Company substantially completed the exit of its retail business during the second quarter of fiscal year 2009, although it continues to recognize revenue and expense associated with administering extended service policies as discontinued operations.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2134480

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2209116

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2122150

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2197480

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=7880789&loc=SL6228881-111685

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 15
-URI http://asc.fasb.org/subtopic&trid=2122524

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=7668296&loc=d3e288-107754

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 915
-SubTopic 235
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6472506&loc=d3e38932-110933

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=18733093&loc=d3e5614-111684

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 94-6
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 2-6
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 46R
-Paragraph 4, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS140-4/FIN46(R)-8
-Paragraph 8, C1, C7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Accounting Policies

9 Months Ended

Oct. 31, 2012

Significant Accounting Policies [Text Block]

Note 2. Accounting Policies

The interim consolidated condensed financial statements have been prepared in accordance with the accounting policies described in the notes to the consolidated financial statements included in the Company’s fiscal year 2011 Annual Report on Form 10-K. While management believes that the procedures followed in the preparation of interim financial information are reasonable, the accuracy of some estimated amounts is dependent upon facts that will exist or calculations that will be accomplished at fiscal year-end. Examples of such estimates include accrued liabilities, such as management bonuses, and the provision for income taxes. Any adjustments pursuant to such estimates during the quarter were of a normal recurring nature. Actual results could differ from those estimates.

Revenue Recognition

The Company recognizes sales from the production of ethanol, distillers grains and non-food grade corn oil when title transfers to customers, upon shipment from its plant. Shipping and handling charges to customers are included in net sales and revenue.

The Company includes income from real estate leasing activities in net sales and revenue. The Company accounts for these leases as operating leases. Accordingly, minimum rental revenue is recognized on a straight-line basis over the term of the lease.

The Company sold, prior to its exit of the retail business, extended service policies covering periods beyond the normal manufacturers’ warranty periods, usually with terms of coverage (including manufacturers’ warranty periods) of between 12 to 60 months. Contract revenues and sales commissions are deferred and amortized on a straight-line basis over the life of the contracts after the expiration of applicable manufacturers’ warranty periods. The Company retains the obligation to perform warranty service and such costs are charged to operations as incurred. All related revenue and expense is classified as discontinued operations.

Cost of Sales

Alternative energy cost of sales includes depreciation, costs of raw materials, inbound freight charges, purchasing and receiving costs, inspection costs, shipping costs, other distribution expenses, warehousing costs, plant management, certain compensation costs, and general facility overhead charges.

Real estate cost of sales includes depreciation, real estate taxes, insurance, repairs and maintenance and other costs directly associated with operating the Company’s portfolio of real property.

Selling, General and Administrative Expenses

The Company includes non-production related costs from its alternative energy segment such as professional fees, selling charges and certain payroll in selling, general and administrative expenses.

The Company includes costs not directly related to operating its portfolio of real property from its real estate segment such as certain payroll and related costs, professional fees and other general expenses in selling, general and administrative expenses.

The Company includes costs associated with its corporate headquarters such as certain payroll and related costs, professional fees and other general expenses in selling, general and administrative expenses.

Interest Cost

No interest was capitalized for the nine months ended October 31, 2012 and 2011. Cash paid for interest for the three months ended October 31, 2012 and 2011 was approximately $1,044,000 and $645,000, respectively. Cash paid for interest for the nine months ended October 31, 2012 and 2011 was approximately $3,779,000 and $1,998,000, respectively.

Financial Instruments

The Company uses derivative financial instruments to manage its balance of fixed and variable rate debt. The Company does not hold or issue derivative financial instruments for trading or speculative purposes. Interest rate swap agreements involve the exchange of fixed and variable rate interest payments and do not represent an actual exchange of the notional amounts between the parties. The swap agreements were not designated for hedge accounting pursuant to ASC 815, Derivatives and Hedging (“ASC 815”). The interest rate swaps are recorded at their fair values and the changes in fair values are recorded as gain or loss on derivative financial instruments in the Consolidated Condensed Statements of Operations. The Company paid settlements of interest rate swaps of approximately $1,375,000 and $1,928,000 for the nine months ended October 31, 2012 and 2011, respectively.

Forward grain purchase and ethanol and distillers grains sale contracts are accounted for under the “normal purchases and normal sales” scope exemption of ASC 815 because these arrangements are for purchases of grain that will be delivered in quantities expected to be used by the Company and sales of ethanol and distillers grains quantities expected to be produced by the Company over a reasonable period of time in the normal course of business.

Income Taxes

The Company applies an effective tax rate to interim periods that is consistent with the Company’s estimated annual tax rate. The Company provides for deferred tax liabilities and assets for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carryforwards. The Company provides for a valuation allowance if, based on the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The Company paid income taxes of approximately $51,000 during the nine months ended October 31, 2012. The Company paid no income taxes during the nine months ended October 31, 2011. The Company received refunds of $1,000,000 and $7,247,000 during the nine months ended October 31, 2012 and 2011, respectively.

As of October 31, 2012, total unrecognized tax benefits were approximately $2,157,000 and accrued penalties and interest were $374,000. If the Company were to prevail on all unrecognized tax benefits recorded, approximately $82,000 of the reserve would benefit the effective tax rate. In addition, the impact of penalties and interest would also benefit the effective tax rate. Interest and penalties associated with unrecognized tax benefits are recorded within income tax expense. On a quarterly and annual basis, the Company accrues for the effects of open uncertain tax positions and the related potential penalties and interest.

Inventories

Inventories are carried at the lower of cost or market on a first-in, first-out basis. Alternative energy segment inventory includes direct production costs and certain overhead costs such as depreciation, property taxes and utilities related to producing ethanol and related by-products. Inventory is permanently written down for instances when cost exceeds estimated net realizable value; such write-downs are based primarily upon commodity prices as the market value of inventory is often dependent upon changes in commodity prices. The write-down of inventory was approximately $469,000 and $153,000 at October 31, 2012 and January 31, 2012, respectively. Fluctuations in the write-down of inventory generally relate to the levels and composition of such inventory at a given point in time. The components of inventory at October 31, 2012 and January 31, 2012 are as follows (amounts in thousands):


	October 31, 2012		January 31, 2012


Ethanol and other finished goods	$	7,268	$	5,318
Work in process		4,576		3,819
Grain and other raw materials		16,460		21,212

Total	$	28,304	$	30,349

Property and Equipment

Property and equipment is recorded at cost. Depreciation is computed using the straight-line method. Estimated useful lives are 15 to 40 years for buildings and improvements, and 3 to 20 years for fixtures and equipment.

In accordance with ASC 360-10 “Impairment or Disposal of Long-Lived Assets”, the carrying value of long-lived assets is assessed for recoverability by management when changes in circumstances indicate that the carrying amount may not be recoverable, based on an analysis of undiscounted future expected cash flows from the use and ultimate disposition of the asset. Impairment charges were insignificant in the three months ended October 31, 2012 and 2011, respectively and were approximately $0.3 million and $1.2 million in the first nine months of fiscal years 2012 and 2011, respectively. These charges relate to the Company’s real estate segment and discontinued operations. Impairment charges result from the Company’s management performing cash flow analysis and represent management’s estimate of the excess of net book value over fair value. Fair value is estimated using expected future cash flows on a discounted basis or appraisals of specific properties as appropriate. Long-lived assets are tested for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. Given the nature of the Company’s business, events and changes in circumstances include, but are not limited to, a significant decline in estimated future cash flows, a sustained decline in market prices for similar assets, or a significant adverse change in legal or regulatory factors or the business climate. A significant decline in estimated future cash flows is represented by a greater than 25% annual decline in expected future cash flows (for asset groups in the real estate reportable segment) or a change in the spread between ethanol and grain prices that would result in greater than six consecutive months of estimated or actual significant negative cash flows (for asset groups in the alternative energy reportable segment).

The Company tests for recoverability of an asset group by comparing its carrying amount to its estimated undiscounted future cash flows. If the carrying amount of an asset group exceeds its estimated undiscounted future cash flows, the Company recognizes an impairment charge for the amount by which the asset group’s carrying amount exceeds its fair value, if any. The Company generally determines the fair value of the asset group using a discounted cash flow model based on market participant assumptions (for income producing asset groups) or by obtaining appraisals based on the market approach and comparable market transactions (for non-income producing asset groups).

In the real estate reportable segment, each individual real estate property represents the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. As such, the Company separately tests individual real estate properties for recoverability. The real estate reportable segment includes both income producing and non-income producing asset groups.

In the alternative energy reportable segment, each individual ethanol plant represents the lowest level for which identifiable cash flows are independent of the cash flows of other assets and liabilities. As such, the Company separately tests individual ethanol plants for recoverability. In addition to the general events and changes in circumstances noted above that indicate that an asset group may not be recoverable, the Company also considers the following events as indicators: the decision to suspend operations at a plant for at least a six month period, or an expected or actual failure to maintain compliance with debt covenants at our ethanol plants. The alternative energy reportable segment includes only income producing asset groups.

Investments and Deposits

Restricted investments, which are principally money market mutual funds and cash deposits, are stated at cost plus accrued interest, which approximates market. Restricted investments at October 31, 2012 and January 31, 2012 are required by two states to cover possible future claims under extended service policies over the remaining lives of the service policy contracts. In accordance with ASC 320, “Investments-Debt and Equity Securities” the Company has classified these investments as available for sale.

The method of accounting applied to long-term investments, whether consolidated, equity or cost, involves an evaluation of the significant terms of each investment that explicitly grant or suggest evidence of control or influence over the operations of the investee and also includes the identification of any variable interests in which the Company is the primary beneficiary. The Company consolidates the results of two majority owned subsidiaries, One Earth and NuGen. The results of One Earth are included on a delayed basis of one month. The Company accounts for investments in limited liability companies in which it may have a less than 20% ownership interest, using the equity method of accounting when the factors discussed in ASC 323 “Investments-Equity Method and Joint Ventures” are met. The excess of the carrying value over the underlying equity in the net assets of equity method investees is allocated to specific assets and liabilities. Any unallocated excess is treated as goodwill and is recorded as a component of the carrying value of the equity method investee. Investments in businesses that the Company does not control but for which it has the ability to exercise significant influence over operating and financial matters are accounted for using the equity method. Investments in which the Company does not have the ability to exercise significant influence over operating and financial matters are accounted for using the cost method. The Company accounts for its investments in Big River Resources, LLC (“Big River”) and Patriot Holdings, LLC (“Patriot”) using the equity method of accounting and includes the results of these entities on a delayed basis of one month.

The Company periodically evaluates its investments for impairment due to declines in market value considered to be other than temporary. Such impairment evaluations include, in addition to persistent, declining market prices, general economic and company-specific evaluations. If the Company determines that a decline in market value is other than temporary, then a charge to earnings is recorded in the Consolidated Condensed Statements of Operations and a new cost basis in the investment is established.

Accounting Changes and Recently Issued Accounting Standards

Effective February 1, 2012, the Company was required to adopt the third phase of amended guidance in ASC 820 “Fair Value Measurements and Disclosures”. The amendment established common fair value measurement and disclosure requirements by improving comparability of fair value measurements presented and disclosed in financial statements prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and those prepared in conformity with International Financial Reporting Standards. The amended guidance clarified the application of existing requirements and requires additional disclosure for Level 3 measurements regarding the sensitivity of fair value to changes in unobservable inputs and any interrelationships between those inputs. The adoption of this amended guidance did expand disclosure related to fair value but, otherwise, did not impact the Company’s consolidated condensed financial statements.

Effective February 1, 2012, the Company was required to adopt the amended guidance in ASC 220 “Comprehensive Income”. This amendment increased the prominence of other comprehensive income in the financial statement by eliminating the option to present other comprehensive income in the statement of stockholders’ equity, and rather requiring comprehensive income to be reported in either a single continuous statement or in two separate but consecutive statements reporting net income and other comprehensive income. The adoption of this amended guidance did not impact the Company’s consolidated condensed financial statements.

Leases

9 Months Ended

Oct. 31, 2012

Leases of Lessor Disclosure [Text Block]

Note 3. Leases

At October 31, 2012, the Company has lease agreements, as landlord, for all or portions of six owned former retail stores and one owned former distribution center. All of the leases are accounted for as operating leases. The following table is a summary of future minimum rentals on such leases (amounts in thousands):


Years Ended January 31,	Minimum Rentals


Remainder of 2013	$	382
2014		1,468
2015		1,070
2016		511
2017		443
Thereafter		1,430

Total	$	5,304

- Definition

The entire disclosure for lessor entity's leasing arrangements for operating, capital and leveraged leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 47
-URI http://asc.fasb.org/extlink&oid=6584217&loc=d3e38847-112698

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6952072&loc=d3e45424-112738

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6453916&loc=d3e41460-112716

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952072&loc=d3e45377-112738

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6452767&loc=d3e37045-112695

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6453916&loc=d3e41457-112716

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6952072&loc=d3e45437-112738

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 23
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Fair Value

9 Months Ended

Oct. 31, 2012

Fair Value Disclosures [Text Block]

Note 4. Fair Value

The Company applies ASC 820, Fair Value Measurements and Disclosures, (“ASC 820”) which provides a framework for measuring fair value under GAAP. This accounting standard defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date.

The Company determines the fair market values of its financial instruments based on the fair value hierarchy established by ASC 820. ASC 820 requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair values which are provided below. The Company carries cash equivalents, investment in cooperative, restricted investments and derivative liabilities at fair value.

Level 1 – Quoted prices in active markets for identical assets or liabilities. Level 1 assets and liabilities include debt and equity securities and derivative contracts that are traded in an active exchange market, as well as certain U.S. Treasury securities that are highly liquid and are actively traded in over-the-counter markets.

Level 2 – Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 assets and liabilities include derivative contracts whose value is determined using a pricing model with inputs that are observable in the market or can be derived principally or corroborated by observable market data.

Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methods, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. Unobservable inputs shall be developed based on the best information available, which may include the Company’s own data.

The fair values of interest rate swaps are determined by using quantitative models that discount future cash flows using the LIBOR forward interest rate curve. Estimation risk is greater for derivative asset and liability positions that are either option-based or have longer maturity dates where observable market inputs are less readily available or are unobservable, in which case interest rate, price or index scenarios are extrapolated in order to determine the fair value. The fair values of derivative assets and liabilities include adjustments for market liquidity, counterparty credit quality, the Company’s own credit standing and other specific factors, where appropriate.

The fair values of property and equipment, as applicable, are determined by using various models that discount future expected cash flows. Estimation risk is greater for vacant properties as the probability of expected cash flows from the use of vacant properties is difficult to predict.

To ensure the prudent application of estimates and management judgment in determining the fair values of derivative assets and liabilities and property and equipment, various processes and controls have been adopted, which include: model validation that requires a review and approval for pricing, financial statement fair value determination and risk quantification; periodic review and substantiation of profit and loss reporting for all derivative instruments and property and equipment items.

Financial assets and liabilities measured at fair value on a recurring basis at October 31, 2012 are summarized below (amounts in thousands):


	Level 1		Level 2		Level 3		Fair Value


Cash equivalents	$	2	$	—	$	—	$	2
Money market mutual fund (1)		300		—		—		300
Investment in cooperative (1)		—		—		219		219

Total assets	$	302	$	—	$	219	$	521

Interest rate swap derivative liabilities	$	—	$	3,226	$	—	$	3,226

Financial assets and liabilities measured at fair value on a recurring basis at January 31, 2012 are summarized below (amounts in thousands):


	Level 1		Level 2		Level 3		Fair Value


Cash equivalents	$	2	$	—	$	—	$	2
Money market mutual fund (1)		620		—		—		620
Investment in cooperative (1)		—		—		219		219

Total assets	$	622	$	—	$	219	$	841

Interest rate swap derivative liabilities	$	—	$	4,235	$	—	$	4,235

(1) The money market mutual fund is included in “Restricted investments and deposits” and the investment in cooperative is included in “Other assets” on the accompanying Consolidated Condensed Balance Sheets.

The following table provides a reconciliation of the activity related to assets (investment in cooperative) measured at fair value on a recurring basis using Level 3 inputs (amounts in thousands):


Balance, January 31, 2012	$	219
Current period activity		—

Balance, October 31, 2012	$	219

The Company determined the fair value of the investment in cooperative by using a discounted cash flow analysis on the expected cash flows. Inputs used in the analysis include the face value of the allocated equity amount, the projected term for repayment based upon a historical trend, and a risk adjusted discount rate based on the expected compensation participants would demand because of the uncertainty of the future cash flows. The inherent risk and uncertainty associated with unobservable inputs could have a significant effect on the actual fair value of the investment.

Assets measured at fair value on a non-recurring basis for the first nine months of fiscal year 2012 are summarized below (amounts in thousands):


	Level 1		Level 2		Level 3		Total Losses (1)


Property and equipment, net	$	—	$	—	$	1,364	$	307

Assets measured at fair value on a non-recurring basis over various dates through January 31, 2012 are summarized below (amounts in thousands):


	Level 1		Level 2		Level 3		Total Losses (1)


Property and equipment, net	$	—	$	—	$	8,803	$	1,227

(1) Total losses include impairment charges and loss on disposal.

The fair value of the Company’s debt is approximately $108.6 million and $123.7 million at October 31, 2012 and January 31, 2012, respectively. The fair value was estimated with Level 2 inputs using a discounted cash flow analysis and the Company’s estimate of market rates of interest for similar loan agreements with companies that have a similar credit risk.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13504-108611

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Property and Equipment

9 Months Ended

Oct. 31, 2012

Property, Plant and Equipment Disclosure [Text Block]

Note 5. Property and Equipment

The components of property and equipment at October 31, 2012 and January 31, 2012 are as follows (amounts in thousands):


	October 31, 2012			January 31, 2012


Land and improvements	$	24,253		$	25,094
Buildings and improvements		38,752			40,710
Machinery, equipment and fixtures		221,504			212,797
Leasehold improvements		—			366
Construction in progress		104			7,194

		284,613			286,161
Less: accumulated depreciation		(56,802	)		(46,077	)

	$	227,811		$	240,084

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

+ References + Details

Other Assets

9 Months Ended

Oct. 31, 2012

Other Assets Disclosure [Text Block]

Note 6. Other Assets

The components of other assets at October 31, 2012 and January 31, 2012 are as follows (amounts in thousands):


	October 31, 2012		January 31, 2012


Deferred financing costs, net	$	903	$	1,306
Prepaid commissions		262		729
Deposits		2,514		2,564
Real estate taxes refundable		1,969		1,969
Other		1,145		1,316

Total	$	6,793	$	7,884

Long Term Debt and Interest Rate Swaps

9 Months Ended

Oct. 31, 2012

Long-term Debt [Text Block]

Note 7. Long Term Debt and Interest Rate Swaps

One Earth Energy Subsidiary Level Debt

In September 2007, One Earth entered into a $111,000,000 financing agreement consisting of a construction loan agreement for $100,000,000 together with a $10,000,000 annually renewable revolving loan and a $1,000,000 letter of credit with First National Bank of Omaha (“the Bank”). The construction loan was converted into a term loan on July 31, 2009. The term loan bears interest at variable interest rates ranging from LIBOR plus 280 basis points to LIBOR plus 300 basis points (3.3% -3.5% at October 31, 2012). Beginning with the first quarterly payment on October 8, 2009, payments are due in 19 quarterly payments of principal plus accrued interest with the principal portion calculated based on a 120 month amortization schedule. One final installment will be required on the maturity date (July 31, 2014) for the remaining unpaid principal balance with accrued interest. Principal payments equal to 20% of annual excess cash flows are also due. Such payments cannot exceed $6 million in a year.

Borrowings are secured by all of the assets of One Earth. This debt is recourse only to One Earth and not to REX American Resources Corporation or any of its other subsidiaries. As of October 31, 2012, approximately $58.2 million was outstanding on the term loan. One Earth is also subject to certain financial covenants under the loan agreement, including debt service coverage ratio requirements and working capital requirements. One Earth was in compliance with these covenants, as applicable, at October 31, 2012. One Earth has paid approximately $1.4 million in financing costs. These costs are recorded as deferred financing costs and are amortized ratably over the term of the loan.

The Company’s proportionate share of restricted net assets related to One Earth was approximately $78.2 million and $70.2 million at October 31, 2012 and January 31, 2012, respectively. Restricted net assets may not be paid in the form of dividends or advances to the parent company or other members of One Earth per the terms of the loan agreement with the Bank.

As of the end of its third quarter, One Earth has no outstanding borrowings on the $10,000,000 revolving loan, which expires on May 29, 2013, nor any outstanding letters of credit.

One Earth entered into two forward interest rate swaps in the notional amounts of $50.0 million and $25.0 million with the Bank. The swap settlements commenced as of July 31, 2009; the $50.0 million swap terminates on July 8, 2014 and the $25.0 million swap terminated on July 31, 2011. The $50.0 million swap fixed a portion of the variable interest rate of the term loan subsequent to the plant completion date at 7.9% while the $25.0 million swap fixed the rate at 5.49%. At October 31, 2012 and January 31, 2012, the Company recorded a liability of approximately $3.2 million and $4.2 million, respectively, related to the fair value of the remaining swap. The change in fair value is recorded in the Consolidated Condensed Statements of Operations.

NuGen Energy Subsidiary Level Debt

In November 2011, NuGen entered into a $65,000,000 financing agreement consisting of a term loan agreement for $55,000,000 and a $10,000,000 annually renewable revolving loan with First National Bank of Omaha (“the Bank”). The term loan bears interest at variable interest rate of LIBOR plus 325 basis points, subject to a 4% floor (4% at October 31, 2012). Beginning with the first quarterly payment on February 1, 2012, payments are due in 19 quarterly payments of principal plus accrued interest with the principal portion calculated based on a 120 month amortization schedule. One final installment will be required on the maturity date (October 31, 2016) for the remaining unpaid principal balance with accrued interest. Principal payments equal to 40% of annual excess cash flows are also due. Such payments cannot exceed $5 million in a year.

Borrowings are secured by all of the assets of NuGen. This debt is recourse only to NuGen and not to REX American Resources Corporation or any of its other subsidiaries. As of October 31, 2012, approximately $49.5 million was outstanding on the term loan. NuGen is also subject to certain financial covenants under the loan agreement, including debt service coverage ratio requirements (beginning with the quarter and fiscal year ending January 31, 2013) and working capital requirements. NuGen was in compliance with these covenants, as applicable, at October 31, 2012. NuGen has paid approximately $0.6 million in financing costs. These costs are recorded as deferred financing costs and are amortized ratably over the term of the loan.

The Company’s proportionate share of restricted net assets related to NuGen was approximately $53.3 million and approximately $50.4 million at October 31, 2012 and January 31, 2012, respectively. Restricted net assets may not be paid in the form of dividends or advances to the parent company or other members of NuGen per the terms of the loan agreement with the Bank.

NuGen has no outstanding borrowings on the $10,000,000 revolving loan as of October 31, 2012 which expires on May 31, 2013.

Financial Instruments

9 Months Ended

Oct. 31, 2012

Financial Instruments Disclosure [Text Block]

Note 8. Financial Instruments

The Company uses interest rate swaps to manage its interest rate exposure at One Earth by fixing the interest rate on a portion of the entity’s variable rate debt. The Company does not engage in trading activities involving derivative contracts for which a lack of marketplace quotations would necessitate the use of fair value estimation techniques. The notional amounts and fair values of derivatives, all of which are not designated as cash flow hedges at October 31, 2012 are summarized in the table below (amounts in thousands):


	Notional Amount		Fair Value Liability


Interest rate swap	$	38,841	$	3,226

As the interest rate swaps are not designated as cash flow hedges, the unrealized gain and loss on the derivatives is reported in current earnings. The Company reported losses of $140,000 and $501,000 in the third quarter of fiscal years 2012 and 2011, respectively. The Company reported losses of $366,000 and $1,190,000 in the first nine months of fiscal years 2012 and 2011, respectively.

Stock Option Plans

9 Months Ended

Oct. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

Note 9. Stock Option Plans

The Company has stock-based compensation plans under which stock options have been granted to directors, officers and key employees at the market price on the date of the grant. No options have been granted since fiscal year 2004.

The total intrinsic value of options exercised during the nine months ended October 31, 2012 and 2011 was approximately $1.8 million and $3.1 million, respectively, resulting in tax deductions to realize benefits of approximately $0.3 million and $0.6 million, respectively. The following table summarizes options granted, exercised and canceled or expired during the nine months ended October 31, 2012:


	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)

Outstanding at January 31, 2012		268,723		$	13.15
Exercised		(99,968	)	$	14.30

Outstanding and exercisable at October 31, 2012		168,755		$	12.46		1.3	$	869

During the first nine months of fiscal year 2012, certain officers and directors of the Company tendered 32,935 shares of the Company’s common stock as payment of the exercise price of stock options exercised pursuant to the Company’s Stock-for-Stock and Cashless Option Exercise Rules and Procedures, adopted on June 4, 2001. The purchase price was $32.53 per share.

At October 31, 2012, there was no unrecognized compensation cost related to nonvested stock options.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Income Per Share from Continuing Operations Attributable to REX Common Shareholders

9 Months Ended

Oct. 31, 2012

Earnings Per Share [Text Block]

Note 10. Income Per Share from Continuing Operations Attributable to REX Common Shareholders

The following table reconciles the computation of basic and diluted net income per share from continuing operations for the periods presented (in thousands, except per share amounts):


	Three Months Ended October 31, 2012						Three Months Ended October 31, 2011

	Income		Shares		Per Share		Income		Shares		Per Share

Basic income per share from continuing operations attributable to REX common shareholders	$	272		8,226	$	0.03	$	6,029		9,205	$	0.65

Effect of stock options		—		32				—		34

Diluted income per share from continuing operations attributable to REX common shareholders	$	272		8,258	$	0.03	$	6,029		9,239	$	0.65


	Nine Months Ended October 31, 2012						Nine Months Ended October 31, 2011

	Income		Shares		Per Share		Income		Shares		Per Share

Basic income per share from continuing operations attributable to REX common shareholders	$	1,707		8,311	$	0.21	$	12,200		9,385	$	1.30

Effect of stock options		—		50				—		68

Diluted income per share from continuing operations attributable to REX common shareholders	$	1,707		8,361	$	0.21	$	12,200		9,453	$	1.29

For the three and nine months ended October 31, 2012 and 2011, there were no shares subject to outstanding options that were not included in the common equivalent shares outstanding calculation as the effect from these shares was antidilutive.

Investments and Restricted Deposits

9 Months Ended

Oct. 31, 2012

Investments And Deposits [Text Block]

Note 11. Investments and Restricted Deposits

The Company has approximately $203,000 and $743,000 at October 31, 2012 and January 31, 2012, respectively, on deposit with the Florida Department of Financial Services to secure its obligation to fulfill future obligations related to extended warranty contracts sold in the state of Florida. As such, this deposit is restricted from use for general corporate purposes.

In addition to the deposit with the Florida Department of Financial Services, the Company has $300,000 at October 31, 2012 and $620,000 at January 31, 2012 invested in a money market mutual fund to satisfy Florida Department of Financial Services regulations. As such, this investment is restricted from use for general corporate purposes.

The following table summarizes equity method investments at October 31, 2012 and January 31, 2012 (amounts in thousands):


Entity	Ownership Percentage			Carrying Amount October 31, 2012		Carrying Amount January 31, 2012


Big River		10	%	$	32,530	$	34,370
Patriot		27	%		28,542		27,309

Total Equity Method Investments				$	61,072	$	61,679

The following table summarizes (loss) or income recognized from equity method investments for the periods presented (amounts in thousands):


	Three Months Ended October 31,					Nine Months Ended October 31,
	2012			2011		2012		2011


Big River	$	(496	)	$	1,552	$	165	$	4,406
Patriot		2,038			1,985		1,338		3,358
NuGen		—			2,747		—		8,063

Total	$	1,542		$	6,284	$	1,503	$	15,827

Effective July 1, 2010, the Company purchased a 48% equity interest in NuGen which operates an ethanol producing facility in Marion, South Dakota with an annual nameplate capacity of 100 million gallons. The Company accounted for this investment using the equity method of accounting. On November 1, 2011, the Company acquired an additional 50% equity interest in NuGen. Following the purchase, the Company owned all of the outstanding Class A membership interest units in NuGen, representing a 100% voting interest and a 98% equity interest in NuGen. Effective November 1, 2011, the Company ceased using the equity method of accounting and began consolidating the results of NuGen. Prior to consolidation, the Company recorded the results of NuGen on a one month lag. During fiscal year 2011, NuGen adopted the same fiscal year as the Company. As a result, the Company no longer records the results of NuGen on a one month lag. NuGen repurchased shares from noncontrolling interests holders during fiscal year 2012. This increased the Company’s equity interest in NuGen to 99%.

Undistributed earnings of Big River and Patriot totaled approximately $22.3 million and $22.8 million at October 31, 2012 and January 31, 2012, respectively. During the first nine months of fiscal years 2012 and 2011, the Company received dividends from equity method investees of approximately $2.0 million and $2.3 million, respectively.

Summarized financial information for each of the Company’s equity method investees except for NuGen is presented in the following table for the three and nine months ended September 30, 2012 and 2011. The summarized financial information for NuGen is presented for the three and nine months ended October 31, 2011 (amounts in thousands):


Three Months Ended September 30, 2012	Big River			Patriot


Net sales and revenue	$	306,808		$	100,231
Gross (loss) profit	$	(14,116	)	$	8,897
(Loss) income from continuing operations	$	(5,109	)	$	7,678
Net (loss) income	$	(5,109	)	$	7,678


Three Months Ended September 30, 2011 or October 31, 2011	Big River		Patriot		NuGen


Net sales and revenue	$	314,200	$	94,580	$	87,620
Gross profit	$	32,849	$	10,241	$	7,433
Income from continuing operations	$	15,959	$	8,513	$	5,831
Net income	$	15,959	$	8,513	$	5,831


Nine Months Ended September 30, 2012	Big River		Patriot


Net sales and revenue	$	856,659	$	271,620
Gross profit	$	8,399	$	10,105
Income from continuing operations	$	1,677	$	5,032
Net income	$	1,677	$	5,032


Nine Months Ended September 30, 2011 or October 31, 2011	Big River		Patriot		NuGen


Net sales and revenue	$	845,926	$	284,546	$	255,671
Gross profit	$	64,349	$	19,775	$	22,425
Income from continuing operations	$	45,319	$	14,401	$	16,822
Net income	$	45,319	$	14,401	$	16,822

Patriot and Big River have debt agreements that limit and restrict amounts the companies can pay in the form of dividends or advances to owners. The restricted net assets of Patriot and Big River combined at October 31, 2012 and January 31, 2012 are approximately $369.9 million and $326.2 million, respectively. The Company’s proportionate share of restricted net assets of Patriot and Big River combined at October 31, 2012 and January 31, 2012 are approximately $54.0 million and $44.2 million, respectively.

The Company previously held an ownership interest in Levelland Hockley County Ethanol, LLC (“Levelland Hockley”) which owned an ethanol plant in Levelland, Texas. On April 27, 2011, Levelland Hockley voluntarily filed for protection under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court, Northern District of Texas. In connection with the bankruptcy proceedings, the plant was sold on May 14, 2012 and on August 1, 2012, the bankruptcy case was converted to a Chapter 7 proceeding. As a result, we have no remaining ownership or financial interest in Levelland Hockley and will classify the results of Levelland Hockley as discontinued operations. No periods presented in the Consolidated Condensed Financial Statements were affected by this classification. However, future periodic reports filed with the Securities and Exchange Commission will be affected as years prior to fiscal year 2011 are required to be included in such filings.

Income Taxes

9 Months Ended

Oct. 31, 2012

Income Tax Disclosure [Text Block]

Note 12. Income Taxes

The effective tax rate on consolidated pre-tax income from continuing operations was 15.1% for the three months ended October 31, 2012, and 34.0% for the three months ended October 31, 2011. The effective tax rate on consolidated pre-tax income from continuing operations was 27.4% for the nine months ended October 31, 2012, and 36.0% for the nine months ended October 31, 2011. The fluctuations in the effective tax rate primarily relate to the presentation of noncontrolling interests in the income of consolidated subsidiaries as noncontrolling interests are presented in the Consolidated Condensed Statements of Operations after the income tax provision or benefit.

The Company files a U.S. federal income tax return and income tax returns in various states. In general, the Company is no longer subject to U.S. federal, state or local income tax examinations by tax authorities for years ended January 31, 2008 and prior. A reconciliation of the beginning and ending amount of unrecognized tax benefits, including interest and penalties, is as follows (amounts in thousands):


Unrecognized tax benefits, January 31, 2012	$	2,484
Changes for prior years’ tax positions		47
Changes for current year tax positions		—

Unrecognized tax benefits, October 31, 2012	$	2,531

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Discontinued Operations

9 Months Ended

Oct. 31, 2012

Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]

Note 13. Discontinued Operations

During fiscal year 2009, the Company completed the exit of its retail business. Accordingly, all operations of the Company’s former retail segment and certain sold properties have been classified as discontinued operations for all periods presented. Once real estate property has been sold, and no continuing involvement is expected, the Company classifies the results of the operations as discontinued operations. The results of operations were previously reported in the Company’s retail or real estate segment, depending on when the store ceased operations. Below is a table reflecting certain items of the Consolidated Condensed Statements of Operations that were reclassified as discontinued operations for the periods indicated (amounts in thousands):


	Three Months Ended October 31,						Nine Months Ended October 31,
	2012			2011			2012			2011

	(In Thousands)
Net sales and revenue	$	434		$	921		$	1,549		$	3,411
Cost of sales		52			194			361			741

Income before income taxes		179			298			601			1,401
Provision for income taxes		(72	)		(112	)		(240	)		(545	)

Income from discontinued operations, net of tax	$	107		$	186		$	361		$	856

Gain on disposal	$	50		$	429		$	133		$	695
Provision for income taxes		(20	)		(162	)		(53	)		(270	)

Gain on disposal of discontinued operations, net of tax	$	30		$	267		$	80		$	425

- Definition

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1510-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1474-107760

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1020-107759

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1012-107759

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43-48
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Commitments and Contingencies

9 Months Ended

Oct. 31, 2012

Commitments and Contingencies Disclosure [Text Block]

Note 14. Commitments and Contingencies

The Company is involved in various legal actions arising in the normal course of business. After taking into consideration legal counsels’ evaluations of such actions, management is of the opinion that their outcome will not have a material effect on the Company’s consolidated condensed financial statements.

One Earth and NuGen have combined forward purchase contracts for approximately 18.9 million bushels of corn, the principal raw material for their ethanol plants. They expect to take delivery of the grain through March 2013.

One Earth and NuGen have combined sales commitments for approximately 45.1 million gallons of ethanol, approximately 49,000 tons of distillers grains and approximately 4.7 million pounds of non-food grade corn oil. They expect to deliver the ethanol, distillers grains and non-food grade corn oil through March 2013.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Segment Reporting

9 Months Ended

Oct. 31, 2012

Segment Reporting Disclosure [Text Block]

Note 15. Segment Reporting

The Company has two segments: alternative energy and real estate. The Company evaluates the performance of each reportable segment based on segment profit. Segment profit excludes income taxes, indirect interest expense, discontinued operations, indirect interest income and certain other items that are included in net income determined in accordance with GAAP.

Segment profit includes realized and unrealized gains on derivative financial instruments. The following table summarizes segment and other results and assets (amounts in thousands):


	Three Months Ended October 31,					Nine Months Ended October 31,
	2012			2011		2012			2011

Net sales and revenue:
Alternative energy	$	178,495		$	84,144	$	481,938		$	238,557
Real estate		455			380		1,184			926

Total net sales and revenues	$	178,950		$	84,524	$	483,122		$	239,483


Segment gross profit (loss):
Alternative energy	$	3,686		$	8,965	$	16,224		$	14,694
Real estate		(39	)		53		(117	)		(1,171	)

Total gross profit	$	3,647		$	9,018	$	16,107		$	13,523


	Three Months Ended October 31,						Nine Months Ended October 31,
	2012			2011			2012			2011

Segment profit (loss):
Alternative energy	$	1,586		$	12,394		$	6,478		$	22,827
Real estate		(91	)		7			(277	)		(1,306	)
Corporate expense		(603	)		(521	)		(1,751	)		(1,738	)
Interest expense		(21	)		(25	)		(65	)		(87	)
Income from synthetic fuel partnerships		—			—			—			2,883
Interest income		19			74			68			289

Income from continuing operations before income taxes and noncontrolling interests	$	890		$	11,929		$	4,453		$	22,868


	October 31, 2012		January 31, 2012

Assets:
Alternative energy	$	351,406	$	367,029
Real estate		13,945		17,458
Corporate		52,762		53,562

Total assets	$	418,113	$	438,049


	Three Months Ended October 31,						Nine Months Ended October 31,
	2012			2011			2012			2011

Sales of products alternative energy segment:
Ethanol		74	%		83	%		76	%		82	%
Distillers grains		23	%		17	%		21	%		18	%
Other		3	%		—	%		3	%		—	%

Total		100	%		100	%		100	%		100	%


Sales of services real estate segment:
Lease revenue		100	%		100	%		100	%		100	%

Certain corporate costs and expenses, including information technology, employee benefits and other shared services are allocated to the business segments. The allocations are generally amounts agreed upon by management and are based on a reasonable and systematic approach, which may differ from amounts that would be incurred if such services were purchased separately by the business segment. Corporate assets are primarily cash and deferred income tax benefits.

Cash, except for cash held by One Earth and NuGen, is considered to be fungible and available for both corporate and segment use depending on liquidity requirements. Cash of approximately $20.2 million held by One Earth and NuGen will be used primarily to fund working capital needs for the subsidiaries.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Related-Party Transactions

9 Months Ended

Oct. 31, 2012

Note 16. Related-Party Transactions

During the third quarters of fiscal year 2012 and 2011, One Earth purchased approximately $79.0 million and $63.6 million of corn from the Alliance Grain Elevator, an equity investor in One Earth. Such purchases, inclusive of procurement fees, totaled approximately $199.9 million and approximately $191.0 million for the nine months ended October 31, 2012 and 2011, respectively.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39678-107864

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph b
-Article 3A

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph k
-Article 4

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 57
-Paragraph 1-4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Accounting Policies, by Policy (Policies)

9 Months Ended

Oct. 31, 2012

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition

Cost of Sales, Policy [Policy Text Block]

Cost of Sales

Real estate cost of sales includes depreciation, real estate taxes, insurance, repairs and maintenance and other costs directly associated with operating the Company’s portfolio of real property.

Selling, General and Administrative Expenses, Policy [Policy Text Block]

Selling, General and Administrative Expenses

The Company includes non-production related costs from its alternative energy segment such as professional fees, selling charges and certain payroll in selling, general and administrative expenses.

Interest Expense, Policy [Policy Text Block]

Interest Cost

Fair Value of Financial Instruments, Policy [Policy Text Block]

Financial Instruments

Income Tax, Policy [Policy Text Block]

Income Taxes

Inventory, Policy [Policy Text Block]

Inventories


	October 31, 2012		January 31, 2012


Ethanol and other finished goods	$	7,268	$	5,318
Work in process		4,576		3,819
Grain and other raw materials		16,460		21,212

Total	$	28,304	$	30,349

Property, Plant and Equipment, Policy [Policy Text Block]

Property and Equipment

Investments And Deposits [Policy Text Block]

Investments and Deposits

New Accounting Pronouncements, Policy [Policy Text Block]

Accounting Changes and Recently Issued Accounting Standards

Accounting Policies (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Inventory, Current [Table Text Block]

The components of inventory at October 31, 2012 and January 31, 2012 are as follows (amounts in thousands):


	October 31, 2012		January 31, 2012


Ethanol and other finished goods	$	7,268	$	5,318
Work in process		4,576		3,819
Grain and other raw materials		16,460		21,212

Total	$	28,304	$	30,349

Leases (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

The following table is a summary of future minimum rentals on such leases (amounts in thousands):


Years Ended January 31,	Minimum Rentals


Remainder of 2013	$	382
2014		1,468
2015		1,070
2016		511
2017		443
Thereafter		1,430

Total	$	5,304

Fair Value (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Financial assets and liabilities measured at fair value on a recurring basis at October 31, 2012 are summarized below (amounts in thousands):


	Level 1		Level 2		Level 3		Fair Value


Cash equivalents	$	2	$	—	$	—	$	2
Money market mutual fund (1)		300		—		—		300
Investment in cooperative (1)		—		—		219		219

Total assets	$	302	$	—	$	219	$	521

Interest rate swap derivative liabilities	$	—	$	3,226	$	—	$	3,226


	Level 1		Level 2		Level 3		Fair Value


Cash equivalents	$	2	$	—	$	—	$	2
Money market mutual fund (1)		620		—		—		620
Investment in cooperative (1)		—		—		219		219

Total assets	$	622	$	—	$	219	$	841

Interest rate swap derivative liabilities	$	—	$	4,235	$	—	$	4,235

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following table provides a reconciliation of the activity related to assets (investment in cooperative) measured at fair value on a recurring basis using Level 3 inputs (amounts in thousands):


Balance, January 31, 2012	$	219
Current period activity		—

Balance, October 31, 2012	$	219

Fair Value Measurements, Nonrecurring [Table Text Block]

Assets measured at fair value on a non-recurring basis


	Level 1		Level 2		Level 3		Total Losses (1)


Property and equipment, net	$	—	$	—	$	1,364	$	307


	Level 1		Level 2		Level 3		Total Losses (1)


Property and equipment, net	$	—	$	—	$	8,803	$	1,227

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References + Details

Property and Equipment (Tables)

9 Months Ended

Oct. 31, 2012

Property, Plant and Equipment [Table Text Block]

The components of property and equipment at October 31, 2012 and January 31, 2012 are as follows (amounts in thousands):


	October 31, 2012			January 31, 2012


Land and improvements	$	24,253		$	25,094
Buildings and improvements		38,752			40,710
Machinery, equipment and fixtures		221,504			212,797
Leasehold improvements		—			366
Construction in progress		104			7,194

		284,613			286,161
Less: accumulated depreciation		(56,802	)		(46,077	)

	$	227,811		$	240,084

Other Assets (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Other Assets [Table Text Block]

The components of other assets at October 31, 2012 and January 31, 2012 are as follows (amounts in thousands):


	October 31, 2012		January 31, 2012


Deferred financing costs, net	$	903	$	1,306
Prepaid commissions		262		729
Deposits		2,514		2,564
Real estate taxes refundable		1,969		1,969
Other		1,145		1,316

Total	$	6,793	$	7,884

Financial Instruments (Tables)

9 Months Ended

Oct. 31, 2012

Schedule Of Notional Amounts And Fair Values Of Derivatives Not Designated As Cash Flow Hedges [Table Text Block]

The notional amounts and fair values of derivatives, all of which are not designated as cash flow hedges at October 31, 2012 are summarized in the table below (amounts in thousands):


	Notional Amount		Fair Value Liability


Interest rate swap	$	38,841	$	3,226

Stock Option Plans (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes options granted, exercised and canceled or expired during the nine months ended October 31, 2012:


	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)

Outstanding at January 31, 2012		268,723		$	13.15
Exercised		(99,968	)	$	14.30

Outstanding and exercisable at October 31, 2012		168,755		$	12.46		1.3	$	869

Income Per Share from Continuing Operations Attributable to REX Common Shareholders (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table reconciles the computation of basic and diluted net income per share from continuing operations for the periods presented (in thousands, except per share amounts):


	Three Months Ended October 31, 2012						Three Months Ended October 31, 2011

	Income		Shares		Per Share		Income		Shares		Per Share

Basic income per share from continuing operations attributable to REX common shareholders	$	272		8,226	$	0.03	$	6,029		9,205	$	0.65

Effect of stock options		—		32				—		34

Diluted income per share from continuing operations attributable to REX common shareholders	$	272		8,258	$	0.03	$	6,029		9,239	$	0.65


	Nine Months Ended October 31, 2012						Nine Months Ended October 31, 2011

	Income		Shares		Per Share		Income		Shares		Per Share

Basic income per share from continuing operations attributable to REX common shareholders	$	1,707		8,311	$	0.21	$	12,200		9,385	$	1.30

Effect of stock options		—		50				—		68

Diluted income per share from continuing operations attributable to REX common shareholders	$	1,707		8,361	$	0.21	$	12,200		9,453	$	1.29

Investments and Restricted Deposits (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Equity Method Investments [Table Text Block]

The following table summarizes equity method investments at October 31, 2012 and January 31, 2012 (amounts in thousands):


Entity	Ownership Percentage			Carrying Amount October 31, 2012		Carrying Amount January 31, 2012


Big River		10	%	$	32,530	$	34,370
Patriot		27	%		28,542		27,309

Total Equity Method Investments				$	61,072	$	61,679

Schedule Of Income Loss Recognized From Equity Method Investments [Table Text Block]

The following table summarizes (loss) or income recognized from equity method investments for the periods presented (amounts in thousands):


	Three Months Ended October 31,					Nine Months Ended October 31,
	2012			2011		2012		2011


Big River	$	(496	)	$	1,552	$	165	$	4,406
Patriot		2,038			1,985		1,338		3,358
NuGen		—			2,747		—		8,063

Total	$	1,542		$	6,284	$	1,503	$	15,827

Schedule Of Financial Information For Equity Method Investments [Table Text Block]


Three Months Ended September 30, 2012	Big River			Patriot


Net sales and revenue	$	306,808		$	100,231
Gross (loss) profit	$	(14,116	)	$	8,897
(Loss) income from continuing operations	$	(5,109	)	$	7,678
Net (loss) income	$	(5,109	)	$	7,678


Three Months Ended September 30, 2011 or October 31, 2011	Big River		Patriot		NuGen


Net sales and revenue	$	314,200	$	94,580	$	87,620
Gross profit	$	32,849	$	10,241	$	7,433
Income from continuing operations	$	15,959	$	8,513	$	5,831
Net income	$	15,959	$	8,513	$	5,831


Nine Months Ended September 30, 2012	Big River		Patriot


Net sales and revenue	$	856,659	$	271,620
Gross profit	$	8,399	$	10,105
Income from continuing operations	$	1,677	$	5,032
Net income	$	1,677	$	5,032


Nine Months Ended September 30, 2011 or October 31, 2011	Big River		Patriot		NuGen


Net sales and revenue	$	845,926	$	284,546	$	255,671
Gross profit	$	64,349	$	19,775	$	22,425
Income from continuing operations	$	45,319	$	14,401	$	16,822
Net income	$	45,319	$	14,401	$	16,822

Income Taxes (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

A reconciliation of the beginning and ending amount of unrecognized tax benefits, including interest and penalties, is as follows (amounts in thousands):


Unrecognized tax benefits, January 31, 2012	$	2,484
Changes for prior years’ tax positions		47
Changes for current year tax positions		—

Unrecognized tax benefits, October 31, 2012	$	2,531

Discontinued Operations (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]

Below is a table reflecting certain items of the Consolidated Condensed Statements of Operations that were reclassified as discontinued operations for the periods indicated (amounts in thousands):


	Three Months Ended October 31,						Nine Months Ended October 31,
	2012			2011			2012			2011

	(In Thousands)
Net sales and revenue	$	434		$	921		$	1,549		$	3,411
Cost of sales		52			194			361			741

Income before income taxes		179			298			601			1,401
Provision for income taxes		(72	)		(112	)		(240	)		(545	)

Income from discontinued operations, net of tax	$	107		$	186		$	361		$	856

Gain on disposal	$	50		$	429		$	133		$	695
Provision for income taxes		(20	)		(162	)		(53	)		(270	)

Gain on disposal of discontinued operations, net of tax	$	30		$	267		$	80		$	425

- Definition

Tabular disclosure of disposal groups, which may include the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the classification and carrying value of the assets and liabilities comprising the disposal group, and the segment in which the disposal group was reported. Also may include the amount of adjustments to amounts previously reported in discontinued operations such as resolution of contingencies arising from the disposal transaction or the operations of the component prior to disposal.

+ References + Details

Segment Reporting (Tables)

9 Months Ended

Oct. 31, 2012

Schedule of Segment Reporting Information Profit Loss And Revenue Percentage [Table Text Block]

The following table summarizes segment and other results and assets (amounts in thousands):


	Three Months Ended October 31,					Nine Months Ended October 31,
	2012			2011		2012			2011

Net sales and revenue:
Alternative energy	$	178,495		$	84,144	$	481,938		$	238,557
Real estate		455			380		1,184			926

Total net sales and revenues	$	178,950		$	84,524	$	483,122		$	239,483


Segment gross profit (loss):
Alternative energy	$	3,686		$	8,965	$	16,224		$	14,694
Real estate		(39	)		53		(117	)		(1,171	)

Total gross profit	$	3,647		$	9,018	$	16,107		$	13,523


	Three Months Ended October 31,						Nine Months Ended October 31,
	2012			2011			2012			2011

Segment profit (loss):
Alternative energy	$	1,586		$	12,394		$	6,478		$	22,827
Real estate		(91	)		7			(277	)		(1,306	)
Corporate expense		(603	)		(521	)		(1,751	)		(1,738	)
Interest expense		(21	)		(25	)		(65	)		(87	)
Income from synthetic fuel partnerships		—			—			—			2,883
Interest income		19			74			68			289

Income from continuing operations before income taxes and noncontrolling interests	$	890		$	11,929		$	4,453		$	22,868


	Three Months Ended October 31,						Nine Months Ended October 31,
	2012			2011			2012			2011

Sales of products alternative energy segment:
Ethanol		74	%		83	%		76	%		82	%
Distillers grains		23	%		17	%		21	%		18	%
Other		3	%		—	%		3	%		—	%

Total		100	%		100	%		100	%		100	%


Sales of services real estate segment:
Lease revenue		100	%		100	%		100	%		100	%

Schedule Of Segment Reporting Information Assets [Table Text Block]

The following table summarizes segment assets (amounts in thousands):


	October 31, 2012		January 31, 2012

Assets:
Alternative energy	$	351,406	$	367,029
Real estate		13,945		17,458
Corporate		52,762		53,562

Total assets	$	418,113	$	438,049

Accounting Policies (Detail) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
Accounting Policies (Detail) - USD ($)	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011	Jan. 31, 2012
Building and Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment, Estimated Useful Lives			15
Building and Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment, Estimated Useful Lives			40
Fixtures And Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Estimated Useful Lives			3
Fixtures And Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Estimated Useful Lives			20
Interest Paid (in Dollars)	$ 1,044,000	$ 645,000	$ 3,779,000	$ 1,998,000
Derivative Settlement On Interest Rate Swap (in Dollars)			1,375,000	1,928,000
Income Taxes Paid (in Dollars)			51,000
Proceeds from Income Tax Refunds (in Dollars)			1,000,000	7,247,000
Unrecognized Tax Benefits Excluding Income Tax Penalties and Interest (in Dollars)	2,157,000		2,157,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued (in Dollars)	374,000		374,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate (in Dollars)	$ 82,000		82,000
Inventory Write-down (in Dollars)			$ 469,000		$ 153,000
Property, Plant and Equipment, Depreciation Methods			Depreciation is computed using the straight-line method
Impairment of Real Estate (in Dollars)			$ 300,000	$ 1,200,000
Estimated Future Cash Flows, Terms			A significant decline in estimated future cash flows is represented by a greater than 25% annual decline in expected future cash flows (for asset groups in the real estate reportable segment) or a change in the spread between ethanol and grain prices that would result in greater than six consecutive months of estimated or actual significant negative cash flows (for asset groups in the alternative energy reportable segment).

Accounting Policies (Detail) - Schedule of components of inventory - USD ($) $ in Thousands	Oct. 31, 2012	Jan. 31, 2012
Ethanol and other finished goods	$ 7,268	$ 5,318
Work in process	4,576	3,819
Grain and other raw materials	16,460	21,212
Total	$ 28,304	$ 30,349

Leases (Detail) - Summary of future minimum rentals on such leases $ in Thousands	Oct. 31, 2012 USD ($)
Remainder of 2013	$ 382
2014	1,468
2015	1,070
2016	511
2017	443
Thereafter	1,430
Total	$ 5,304

Fair Value (Detail) - USD ($) $ in Millions	Oct. 31, 2012	Jan. 31, 2012
Debt Instrument, Fair Value Disclosure	$ 108.6	$ 123.7

Fair Value (Detail) - Financial assets and liabilities measured at fair value on a recurring basis - USD ($)
$ in Thousands

Oct. 31, 2012

Jan. 31, 2012

Fair Value, Inputs, Level 1 [Member]

Cash equivalents

$ 2

Money market mutual fund (1)

^[1]

300

620

Investment in cooperative (1)

^[1]

Total assets

302

622

Fair Value, Inputs, Level 2 [Member]

Money market mutual fund (1)

^[1]

Investment in cooperative (1)

^[1]

Interest rate swap derivative liabilities

3,226

4,235

Fair Value, Inputs, Level 3 [Member]

Money market mutual fund (1)

^[1]

Investment in cooperative (1)

^[1]

219

Total assets

219

Cash equivalents

Money market mutual fund (1)

^[1]

300

620

Investment in cooperative (1)

^[1]

219

Total assets

521

841

Interest rate swap derivative liabilities

$ 3,226

$ 4,235

[1]	The money market mutual fund is included in "Restricted investments and deposits" and the investment in cooperative is included in "Other assets" on the accompanying Consolidated Condensed Balance Sheets.

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

+ References + Details

Fair Value (Detail) - Reconciliation of the activity related to assets (investment in cooperative) measured at fair value on a recurring basis using Level 3 inputs $ in Thousands	Oct. 31, 2012 USD ($)
Balance	$ 219
Balance	$ 219

Fair Value (Detail) - Assets measured at fair value on a non-recurring basis - USD ($)
$ in Thousands

Oct. 31, 2012

Jan. 31, 2012

Assets Measured At Fair Value On A Non-recurring Basis Subsequent [Member] | Fair Value, Inputs, Level 3 [Member]

Property and equipment, net

$ 1,364

Assets Measured At Fair Value On A Non-recurring Basis Subsequent [Member]

Property and equipment, net

^[1]

$ 307

Assets Measured At Fair Value On A Non-recurring Basis Over Various Dates [Member] | Fair Value, Inputs, Level 3 [Member]

Property and equipment, net

$ 8,803

Assets Measured At Fair Value On A Non-recurring Basis Over Various Dates [Member]

Property and equipment, net

^[1]

$ 1,227

[1]	Total losses include impairment charges and loss on disposal.

Property and Equipment (Detail) - Components of property and equipment - USD ($) $ in Thousands	Oct. 31, 2012	Jan. 31, 2012
Land and improvements	$ 24,253	$ 25,094
Buildings and improvements	38,752	40,710
Machinery, equipment and fixtures	221,504	212,797
Leasehold improvements		366
Construction in progress	104	7,194
	284,613	286,161
Less: accumulated depreciation	(56,802)	(46,077)
	$ 227,811	$ 240,084

- Definition

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References + Details

Other Assets (Detail) - Components of other assets - USD ($) $ in Thousands	Oct. 31, 2012	Jan. 31, 2012
Deferred financing costs, net	$ 903	$ 1,306
Prepaid commissions	262	729
Deposits	2,514	2,564
Real estate taxes refundable	1,969	1,969
Other	1,145	1,316
Total	$ 6,793	$ 7,884

Long Term Debt and Interest Rate Swaps (Detail) - USD ($)	3 Months Ended		6 Months Ended	9 Months Ended
	Oct. 31, 2012	Jan. 31, 2012	Jan. 31, 2008	Oct. 31, 2012	Jul. 31, 2009
Interest Rate Swap One [Member] \| One Earth Energy [Member]
Derivative Liability, Notional Amount					$ 50,000,000
Swap Termination Date				July 8, 2014
Debt Instrument, Basis Spread on Variable Rate	7.90%			7.90%
Interest Rate Swap Two [Member] \| One Earth Energy [Member]
Derivative Liability, Notional Amount					$ 25,000,000
Swap Termination Date				July 31, 2011
Debt Instrument, Basis Spread on Variable Rate	5.49%			5.49%
Interest Rate Swap [Member] \| One Earth Energy [Member]
Derivative Liabilities	$ 3,200,000	$ 4,200,000		$ 3,200,000
Interest Rate Swap [Member]
Derivative Liability, Notional Amount	$ 38,841,000			$ 38,841,000
One Earth Energy [Member] \| Construction Loans [Member]
Proceeds from Bank Debt			$ 100,000,000
One Earth Energy [Member] \| Revolving Credit Facility [Member]
Proceeds from Bank Debt			10,000,000
Debt Instrument, Maturity Date				May 29, 2013
One Earth Energy [Member] \| Letter of Credit [Member]
Proceeds from Bank Debt			1,000,000
One Earth Energy [Member] \| Term Loan [Member]
Debt Instrument, Description of Variable Rate Basis				The term loan bears interest at variable interest rates ranging from LIBOR plus 280 basis points to LIBOR plus 300 basis points (3.3% -3.5% at October 31, 2012).
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	3.30%
Debt Instrument, Payment Terms				Beginning with the first quarterly payment on October 8, 2009, payments are due in 19 quarterly payments of principal plus accrued interest with the principal portion calculated based on a 120 month amortization schedule. One final installment will be required on the maturity date (July 31, 2014) for the remaining unpaid principal balance with accrued interest. Principal payments equal to 20% of annual excess cash flows are also due. Such payments cannot exceed $6 million in a year.
Debt Instrument, Maturity Date				Jul. 31, 2014
Debt Instrument, Annual Principal Payment	$ 6,000,000			$ 6,000,000
Long-term Debt, Gross	58,200,000			$ 58,200,000
Debt Instrument, Restrictive Covenants				One Earth is also subject to certain financial covenants under the loan agreement, including debt service coverage ratio requirements and working capital requirements. One Earth was in compliance with these covenants, as applicable, at October 31, 2012.
Payments of Financing Costs				$ 1,400,000
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries	78,200,000	70,200,000		$ 78,200,000
One Earth Energy [Member]
Proceeds from Bank Debt			$ 111,000,000
Debt Conversion, Original Debt, Type of Debt				The construction loan was converted into a term loan on July 31, 2009.
NuGen Energy [Member] \| Revolving Credit Facility [Member]
Proceeds from Bank Debt		10,000,000
NuGen Energy [Member] \| Term Loan [Member]
Proceeds from Bank Debt		55,000,000
Debt Instrument, Description of Variable Rate Basis				The term loan bears interest at variable interest rate of LIBOR plus 325 basis points, subject to a 4% floor (4% at October 31, 2012)
Debt Instrument, Payment Terms				Beginning with the first quarterly payment on February 1, 2012, payments are due in 19 quarterly payments of principal plus accrued interest with the principal portion calculated based on a 120 month amortization schedule. One final installment will be required on the maturity date (October 31, 2016) for the remaining unpaid principal balance with accrued interest. Principal payments equal to 40% of annual excess cash flows are also due. Such payments cannot exceed $5 million in a year.
Debt Instrument, Maturity Date				Oct. 31, 2016
Debt Instrument, Annual Principal Payment	5,000,000			$ 5,000,000
Long-term Debt, Gross	49,500,000			$ 49,500,000
Debt Instrument, Restrictive Covenants				NuGen is also subject to certain financial covenants under the loan agreement, including debt service coverage ratio requirements (beginning with the quarter and fiscal year ending January 31, 2013) and working capital requirements. NuGen was in compliance with these covenants, as applicable, at October 31, 2012.
Payments of Financing Costs				$ 600,000
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries	$ 53,300,000	50,400,000		$ 53,300,000
Debt Instrument, Interest Rate, Stated Percentage	4.00%			4.00%
NuGen Energy [Member]
Proceeds from Bank Debt		$ 65,000,000
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	3.50%

Financial Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Financial Instruments (Detail) - USD ($) $ in Thousands	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Gain (Loss) on Derivative Instruments, Net, Pretax	$ (140)	$ (501)	$ (366)	$ (1,190)

Financial Instruments (Detail) - Schedule Of Notional Amounts And Fair Values Of Derivatives Not Designated As Cash Flow Hedges - USD ($) $ in Thousands	Oct. 31, 2012	Jan. 31, 2012
Interest Rate Swap [Member]
Interest rate swap	$ 38,841
Interest rate swap	3,226
Interest rate swap	$ 3,226	$ 4,235

Stock Option Plans (Detail) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	$ 1.8	$ 3.1
Tax Benefit from Stock Options Exercised	$ 0.3	$ 0.6
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in Shares)	(99,968)	32,935
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in Dollars per share)	$ 14.30	$ 32.53

Stock Option Plans (Detail) - Schedule of Share-based Compensation, Stock Options, Activity - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011
Outstanding Shares	268,723
Outstanding Weighted Average Exercise Price (in Dollars per share)	$ 13.15
Outstanding Weighted Average Remaining Contractual Term	1 year 109 days
Outstanding Aggregate Intrinsic Value (in Dollars)	$ 869
Exercised	(99,968)	32,935
Exercised (in Dollars per share)	$ 14.30	$ 32.53
Outstanding Shares	168,755
Outstanding Weighted Average Exercise Price (in Dollars per share)	$ 12.46

Income Per Share from Continuing Operations Attributable to REX Common Shareholders (Detail) - Reconciles the computation of basic and diluted net income per share from continuing operations - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Basic income per share from continuing operations attributable to REX common shareholders (in Dollars)	$ 272	$ 6,029	$ 1,707	$ 12,200
Basic income per share from continuing operations attributable to REX common shareholders	8,226	9,205	8,311	9,385
Basic income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 0.03	$ 0.65	$ 0.21	$ 1.30
Effect of stock options	32	34	50	68
Diluted income per share from continuing operations attributable to REX common shareholders (in Dollars)	$ 272	$ 6,029	$ 1,707	$ 12,200
Diluted income per share from continuing operations attributable to REX common shareholders	8,258	9,239	8,361	9,453
Diluted income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 0.03	$ 0.65	$ 0.21	$ 1.29

- Definition

The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.21)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.23)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 5

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 18
-Article 7

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 21
-Article 9

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 36, 37, 38
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.21)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 11, 12, 36, 37, 38
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 21
-Article 9

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 18
-Article 7

+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References + Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Weighted-Average Number of Common Shares Outstanding
-URI http://asc.fasb.org/extlink&oid=6528421

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Investments and Restricted Deposits (Detail) - USD ($)	9 Months Ended
Investments and Restricted Deposits (Detail) - USD ($)	Oct. 31, 2012	Oct. 31, 2011	Jan. 31, 2012	Nov. 02, 2011	Jul. 01, 2010
Patriot And Big River [Member]
Restricted Investments	$ 369,900,000		$ 326,200,000
Proportionate Share Of Restricted Net Assets	$ 54,000,000		$ 44,200,000
NuGen Energy [Member]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage			98.00%	50.00%	48.00%
Business Acquisition, Description of Acquired Entity	NuGen which operates an ethanol producing facility in Marion, South Dakota with an annual nameplate capacity of 100 million gallons. The Company accounted for this investment using the equity method of accounting.
Business Acquisition, Percentage of Voting Interests Acquired	99.00%			100.00%
Restricted Investments	$ 203,000		$ 743,000
	300,000		620,000
Retained Earnings, Undistributed Earnings from Equity Method Investees	22,300,000		$ 22,800,000
Proceeds from Equity Method Investment, Dividends or Distributions	$ 2,005,000	$ 2,316,000
Equity Method Investment, Additional Information	The restricted net assets of Patriot and Big River combined at October 31, 2012 and January 31, 2012 are approximately $369.9 million and $326.2 million, respectively. The Company's proportionate share of restricted net assets of Patriot and Big River combined at October 31, 2012 and January 31, 2012 are approximately $54.0 million and $44.2 million, respectively.

Investments and Restricted Deposits (Detail) - Schedule of Equity Method Investments - USD ($) $ in Thousands	Oct. 31, 2012	Jan. 31, 2012
Big River [Member]
Equity Method Investments Ownership Percentage	10.00%
Equity Method Investments Carrying Amount	$ 32,530	$ 34,370
Patriot [Member]
Equity Method Investments Ownership Percentage	27.00%
Equity Method Investments Carrying Amount	$ 28,542	27,309
Equity Method Investments Carrying Amount	$ 61,072	$ 61,679

Investments and Restricted Deposits (Detail) - Schedule Of income (loss) recognized from equity method investments - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Big River [Member]
Income Loss From Equity Method Investments	$ (496)	$ 1,552	$ 165	$ 4,406
Patriot [Member]
Income Loss From Equity Method Investments	2,038	1,985	1,338	3,358
NuGen Energy [Member]
Income Loss From Equity Method Investments		2,747		8,063
Income Loss From Equity Method Investments	$ 1,542	$ 6,284	$ 1,503	$ 15,827

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.12)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 9
-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 19
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 6
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 11
-Article 7

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Investments and Restricted Deposits (Detail) - Schedule Of Financial Information For Equity Method Investments - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2012	Oct. 31, 2011	Sep. 30, 2011	Sep. 30, 2012	Oct. 31, 2011	Sep. 30, 2011
Big River [Member]
Net sales and revenue	$ 306,808		$ 314,200	$ 856,659		$ 845,926
Gross (loss) profit	(14,116)		32,849	8,399		64,349
(Loss) income from continuing operations	(5,109)		15,959	1,677		45,319
Net (loss) income	(5,109)		15,959	1,677		45,319
Patriot [Member]
Net sales and revenue	100,231		94,580	271,620		284,546
Gross (loss) profit	8,897		10,241	10,105		19,775
(Loss) income from continuing operations	7,678		8,513	5,032		14,401
Net (loss) income	$ 7,678		$ 8,513	$ 5,032		$ 14,401
NuGen Energy [Member]
Net sales and revenue		$ 87,620			$ 255,671
Gross (loss) profit		7,433			22,425
(Loss) income from continuing operations		5,831			16,822
Net (loss) income		$ 5,831			$ 16,822

- Definition

The amount of gross profit (loss) reported by an equity method investment of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33912-111571

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(g))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph w
-Article 1

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph g
-Subparagraph 1, 2
-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 18
-Subparagraph f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph bb
-Article 1

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 20
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The amount of net income (loss) reported by an equity method investment of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(g))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33912-111571

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph bb
-Article 1

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 18
-Subparagraph f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 20
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph w
-Article 1

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph g
-Subparagraph 1, 2
-Article 4

+ Details

Income Taxes (Detail)	3 Months Ended		9 Months Ended
Income Taxes (Detail)	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Effective Income Tax Rate Reconciliation, Tax Settlements	15.10%	34.00%	27.40%	36.00%

Income Taxes (Detail) - Summary of reconciliation of the beginning and ending amount of unrecognized tax benefits, including interest and penalties $ in Thousands	9 Months Ended
	Oct. 31, 2012 USD ($)
Unrecognized tax benefits, January 31, 2012	$ 2,484
Changes for prior years’ tax positions	47
Unrecognized tax benefits, October 31, 2012	$ 2,531

Discontinued Operations (Detail) - Consolidated Condensed Statements of Operations that were reclassified as discontinued operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Net sales and revenue	$ 434	$ 921	$ 1,549	$ 3,411
Cost of sales	52	194	361	741
Income before income taxes	179	298	601	1,401
Provision for income taxes	(72)	(112)	(240)	(545)
Income from discontinued operations, net of tax	107	186	361	856
Gain on disposal	50	429	133	695
Provision for income taxes	(20)	(162)	(53)	(270)
Gain on disposal of discontinued operations, net of tax	$ 30	$ 267	$ 80	$ 425

- Definition

Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References + Details

- Definition

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b),(c)
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32672-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=18498875&loc=d3e38679-109324

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 47
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 46
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Tax benefit from provision recognizing a loss for initial, or subsequent, write-down to fair value (less cost to sell) of a of a disposal group that is classified as a component of the entity, which remains unsold as of the reporting date. May include a tax on the (gain) for the recognition of a subsequent increase in fair value (less cost to sell), but not in excess of the cumulative loss previously recognized through write-downs.

+ References + Details

- Definition

Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.12)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.14)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 13
-Article 7

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 47
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 15
-Article 5

+ Details

Commitments and Contingencies (Detail) - One Earth Energy And NuGen Energy [Member]	9 Months Ended
	Oct. 31, 2012
Purchase Commitment, Description	One Earth and NuGen have combined forward purchase contracts for approximately 18.9 million bushels of corn, the principal raw material for their ethanol plants. They expect to take delivery of the grain through March 2013.
Supply Commitment, Description	One Earth and NuGen have combined sales commitments for approximately 45.1 million gallons of ethanol, approximately 49,000 tons of distillers grains and approximately 4.7 million pounds of non-food grade corn oil. They expect to deliver the ethanol, distillers grains and non-food grade corn oil through March 2013.

Segment Reporting (Detail) $ in Millions	Oct. 31, 2012 USD ($)
One Earth Energy And NuGen Energy [Member]
Cash	$ 20.2

Segment Reporting (Detail) - Schedule of Segment Reporting Information, Profit Loss And Revenue Percentage - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Ethanol [Member] \| Alternative Energy Segment [Member]
Sales of products alternative energy segment:
Sale of products	74.00%	83.00%	76.00%	82.00%
Distillers Grains [Member] \| Alternative Energy Segment [Member]
Sales of products alternative energy segment:
Sale of products	23.00%	17.00%	21.00%	18.00%
Other Products [Member] \| Alternative Energy Segment [Member]
Sales of products alternative energy segment:
Sale of products	3.00%		3.00%
Alternative Energy Segment [Member]
Net sales and revenue:
Net sales and revenues	$ 178,495	$ 84,144	$ 481,938	$ 238,557
Segment gross profit (loss):
Gross profit (loss)	3,686	8,965	16,224	14,694
Segment profit (loss):
Income from continuing operations before income taxes and noncontrolling interests	$ 1,586	$ 12,394	$ 6,478	$ 22,827
Sales of products alternative energy segment:
Sale of products	100.00%	100.00%	100.00%	100.00%
Real Estate Segment [Member]
Net sales and revenue:
Net sales and revenues	$ 455	$ 380	$ 1,184	$ 926
Segment gross profit (loss):
Gross profit (loss)	(39)	53	(117)	(1,171)
Segment profit (loss):
Income from continuing operations before income taxes and noncontrolling interests	$ (91)	$ 7	$ (277)	$ (1,306)
Sales of services real estate segment:
Lease revenue	100.00%	100.00%	100.00%	100.00%
Corporate [Member]
Segment profit (loss):
Income from continuing operations before income taxes and noncontrolling interests	$ (603)	$ (521)	$ (1,751)	$ (1,738)
Sales of services real estate segment:
Interest expense	(21)	(25)	(65)	(87)
Income from synthetic fuel partnerships				2,883
Interest income	19	74	68	289
Net sales and revenues	178,950	84,524	483,122	239,483
Gross profit (loss)	3,647	9,018	16,107	13,523
Income from continuing operations before income taxes and noncontrolling interests	890	11,929	4,453	22,868
Interest expense	(1,206)	(620)	(3,733)	(1,923)
Income from synthetic fuel partnerships				2,883
Interest income	$ 42	$ 92	$ 132	$ 364

Segment Reporting (Detail) - Schedule of segment assets - USD ($) $ in Thousands	Oct. 31, 2012	Jan. 31, 2012
Alternative Energy Segment [Member]
Assets:
Assets	$ 351,406	$ 367,029
Real Estate Segment [Member]
Assets:
Assets	13,945	17,458
Corporate [Member]
Assets:
Assets	52,762	53,562
Assets	$ 418,113	$ 438,049

Related-Party Transactions (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Related-Party Transactions (Detail) - USD ($) $ in Millions	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
One Earth Energy [Member]
Related Party Transaction, Purchases from Related Party	$ 79.0	$ 63.6
Related Party Transaction, Purchases from Related Party			$ 199.9	$ 191.0