REX American Resources (REX) 10-K 25 Mar 16 2015 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Jan. 31, 2016	Mar. 24, 2016	Jul. 31, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	REX AMERICAN RESOURCES Corp
Document Type	10-K
Current Fiscal Year End Date	--01-31
Entity Common Stock, Shares Outstanding		6,560,527
Entity Public Float			$ 318,852,936
Amendment Flag	false
Entity Central Index Key	744,187
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Jan. 31, 2016
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jan. 31, 2016	Jan. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 135,765	$ 137,697
Restricted cash	54
Accounts receivable	13,666	8,794
Inventory	17,178	18,062
Refundable income taxes	5,254	3,019
Prepaid expenses and other	6,407	5,810
Deferred taxes - net	1,036	2,363
Total current assets	179,360	175,745
Property and equipment - net	189,976	194,447
Other assets	6,642	6,366
Equity method investments	38,707	80,389
TOTAL ASSETS	414,685	456,947
CURRENT LIABILITIES:
Accounts payable – trade	10,212	9,210
Accrued expenses and other current liabilities	9,423	10,347
Total current liabilities	19,635	19,557
LONG TERM LIABILITIES:
Deferred taxes	38,304	42,768
Other long term liabilities	987	1,658
Total long term liabilities	39,291	44,426
REX shareholders’ equity:
Common stock, 45,000 shares authorized, 29,853 shares issued at par	299	299
Paid in capital	144,844	144,791
Retained earnings	475,874	444,438
Treasury stock, 23,205 and 21,954 shares, respectively	(309,754)	(239,557)
Total REX shareholders’ equity	311,263	349,971
Noncontrolling interests	44,496	42,993
Total equity	355,759	392,964
TOTAL LIABILITIES AND EQUITY	$ 414,685	$ 456,947

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parentheticals) - shares shares in Thousands	Jan. 31, 2016	Jan. 31, 2015
Common stock, shares authorized	45,000	45,000
Common stock, shares issued	29,853	29,853
Treasury stock, shares	23,205	21,954

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Net sales and revenue	$ 436,488	$ 572,230	$ 666,045
Cost of sales	385,654	430,291	601,757
Gross profit	50,834	141,939	64,288
Selling, general and administrative expenses	(19,813)	(19,422)	(17,846)
Gain on sale of investment	10,385
Equity in income of unconsolidated ethanol affiliates	8,984	32,229	17,175
Interest and other income	625	368	195
Interest expense		(2,074)	(3,898)
Gain (loss) on disposal of real estate and property and equipment, net	503	(238)
Income from continuing operations before income taxes	51,518	152,802	59,914
Provision for income taxes	(14,108)	(49,649)	(20,751)
Income from continuing operations	37,410	103,153	39,163
Income from discontinued operations, net of tax		234	325
Gain on disposal of discontinued operations, net of tax		327	741
Net income	37,410	103,714	40,229
Net income attributable to noncontrolling interests	(5,974)	(16,377)	(5,156)
Net income attributable to REX common shareholders	$ 31,436	$ 87,337	$ 35,073
Weighted average shares outstanding – basic (in Shares)	7,297	8,109	8,137
Basic income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 4.31	$ 10.70	$ 4.18
Basic income per share from discontinued operations attributable to REX common shareholders (in Dollars per share)		0.03	0.04
Basic income per share on disposal of discontinued operations attributable to REX common shareholders (in Dollars per share)		0.04	0.09
Basic net income per share attributable to REX common shareholders (in Dollars per share)	$ 4.31	$ 10.77	$ 4.31
Weighted average shares outstanding – diluted (in Shares)	7,307	8,118	8,180
Diluted income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 4.30	$ 10.69	$ 4.16
Diluted income per share from discontinued operations attributable to REX common shareholders (in Dollars per share)		0.03	0.04
Diluted income per share on disposal of discontinued operations attributable to REX common shareholders (in Dollars per share)		0.04	0.09
Diluted net income per share attributable to REX common shareholders (in Dollars per share)	$ 4.30	$ 10.76	$ 4.29
Amounts attributable to REX common shareholders:
Income from continuing operations, net of tax	$ 31,436	$ 86,776	$ 34,007
Income from discontinued operations, net of tax		561	1,066
Net income	$ 31,436	$ 87,337	$ 35,073

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance at Jan. 31, 2013	$ 299,000	$ (219,550,000)	$ 143,575,000	$ 322,028,000	$ 27,931,000	$ 274,283,000
Balance (in Shares) at Jan. 31, 2013	29,853,000	21,701,000
Net income				35,073,000	5,156,000	40,229,000
Treasury stock acquired		$ (3,486,000)				$ (3,486,000)
Treasury stock acquired (in Shares)		137,000				137,015
Noncontrolling interests distribution and other					(1,615,000)	$ (1,615,000)
Stock options and related tax effects		$ 866,000	476,000			1,342,000
Stock options and related tax effects (in Shares)		(85,000)
Balance at Jan. 31, 2014	$ 299,000	$ (222,170,000)	144,051,000	357,101,000	31,472,000	310,753,000
Balance (in Shares) at Jan. 31, 2014	29,853,000	21,753,000
Net income				87,337,000	16,377,000	103,714,000
Treasury stock acquired		$ (18,238,000)				$ (18,238,000)
Treasury stock acquired (in Shares)		284,000				283,979
Noncontrolling interests distribution and other					(4,856,000)	$ (4,856,000)
Stock options and related tax effects		$ 851,000	740,000			1,591,000
Stock options and related tax effects (in Shares)		(83,000)
Balance at Jan. 31, 2015	$ 299,000	$ (239,557,000)	144,791,000	444,438,000	42,993,000	392,964,000
Balance (in Shares) at Jan. 31, 2015	29,853,000	21,954,000
Net income				31,436,000	5,974,000	37,410,000
Treasury stock acquired		$ (70,208,000)				$ (70,208,000)
Treasury stock acquired (in Shares)		1,254,000				1,254,344
Noncontrolling interests distribution and other					(4,471,000)	$ (4,471,000)
Stock options and related tax effects		$ 11,000	53,000			64,000
Stock options and related tax effects (in Shares)		(4,000)
Balance at Jan. 31, 2016	$ 299,000	$ (309,754,000)	$ 144,844,000	$ 475,874,000	$ 44,496,000	$ 355,759,000
Balance (in Shares) at Jan. 31, 2016	29,853,000	23,204,000

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 37,410,000	$ 103,714,000	$ 40,229,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	18,639,000	16,787,000	17,284,000
Impairment charges on real estate	125,000	68,000	55,000
Stock based compensation expense	64,000
Income from equity method investments	(8,984,000)	(32,229,000)	(17,175,000)
Dividends received from equity method investments	11,151,000	22,889,000	5,804,000
Gain on sale of investment	(10,385,000)
Derivative financial instruments		(1,141,000)	(1,648,000)
Gain on disposal of real estate and property and equipment	(503,000)	(275,000)	(1,015,000)
Deferred income tax	(4,196,000)	22,473,000	15,987,000
Excess tax benefit from stock option exercises		(441,000)	(64,000)
Changes in assets and liabilities:
Accounts receivable	(496,000)	7,692,000	(4,919,000)
Inventory	884,000	1,308,000	5,549,000
Prepaid expenses and other assets	(1,135,000)	(1,929,000)	(1,490,000)
Income taxes refundable	(2,235,000)	(1,985,000)	1,480,000
Accounts payable-trade	387,000	2,030,000	1,721,000
Accrued expenses and other liabilities	(536,000)	(1,745,000)	2,637,000
Net cash provided by operating activities	40,190,000	137,216,000	64,435,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(15,495,000)	(9,927,000)	(3,518,000)
Repayment of note receivable	23,000	6,000	681,000
Proceeds from sale of investment	45,476,000
Proceeds from sale of real estate and property and equipment	2,001,000	1,778,000	8,876,000
Restricted cash	(54,000)	500,000	(500,000)
Restricted investments and deposits	250,000	323,000	1,293,000
Net cash provided by (used in) investing activities	32,201,000	(7,320,000)	6,832,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of long term debt		(75,726,000)	(31,203,000)
Stock options exercised		931,000	1,072,000
Payments to noncontrolling interests holders	(4,471,000)	(4,856,000)	(1,638,000)
Excess tax benefit from stock option exercises		441,000	64,000
Treasury stock acquired	(69,852,000)	(18,138,000)	(3,486,000)
Net cash used in financing activities	(74,323,000)	(97,348,000)	(35,191,000)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(1,932,000)	32,548,000	36,076,000
CASH AND CASH EQUIVALENTS-Beginning of year	137,697,000	105,149,000	69,073,000
CASH AND CASH EQUIVALENTS-End of year	135,765,000	137,697,000	105,149,000
Non cash financing activities-Cashless exercises of stock options		100,000
Non cash financing activities-Accrued common stock repurchase	356,000
Non cash investing activities-Accrued capital expenditures	$ 1,063,000	804,000	$ 250,000
Non cash investing activities- Loan receivable granted in connection with sale of real estate		$ 475,000

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Jan. 31, 2016
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Principles of Consolidation – Fiscal Year – Segments – Segment Reporting Use of Estimates – Cash Equivalents – Concentrations of Risk – Inventory . 2016 2015 Ethanol and other finished goods $ 3,105 $ 3,039 Work in process 2,652 2,609 Grain and other raw materials 11,421 12,414 Total $ 17,178 $ 18,062 Property and Equipment – 2016 2015 Land and improvements $ 21,598 $ 20,844 Buildings and improvements 24,543 27,069 Machinery, equipment and fixtures 237,735 231,422 Construction in progress 6,094 1,290 289,970 280,625 Less: accumulated depreciation (99,994 ) (86,178 ) Total $ 189,976 $ 194,447 In accordance with ASC 360-05 “ Impairment or Disposal of Long-Lived Assets 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). Depreciation expense was approximately $18,638,000, $16,387,000 and $16,915,000 in fiscal years 2015, 2014 and 2013, respectively. Investments and Deposits – 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 Statements of Operations and a new cost basis in the investment is established. Revenue Recognition Costs of Sales – Selling, General and Administrative Expenses – Interest Expense – Financial Instruments The Company uses derivative financial instruments (exchange-traded futures contracts) to manage a portion of the risk associated with changes in commodity prices, primarily related to corn. The Company monitors and manages this exposure as part of its overall risk management policy. As such, the Company seeks to reduce the potentially adverse effects that the volatility of these markets may have on its operating results. The Company may take hedging positions in these commodities as one way to mitigate risk. While the Company attempts to link its hedging activities to purchase and sale activities, there are situations in which these hedging activities can themselves result in losses. The Company does not hold or issue derivative financial instruments for trading or speculative purposes. The Company used derivative financial instruments to manage its balance of fixed and variable rate debt. 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 agreement was not designated for hedge accounting pursuant to ASC 815. The interest rate swap was recorded at its fair value and the changes in fair values were recorded as gain or loss on derivative financial instruments in the Consolidated Statements of Operations. The Company paid settlements of interest rate swaps of approximately $1,142,000 and $1,687,000 in fiscal years 2014 and 2013, respectively. Stock Compensation The Company had stock-based compensation plans under which stock options had been granted to directors, officers and key employees. These plans were terminated in fiscal year 2015. The total intrinsic value of options (granted pursuant to these terminated plans) exercised in the years ended January 31, 2015 and 2014 was approximately $4.0 million and $1.1 million, respectively, resulting in tax deductions to realize benefits of approximately $0.8 million and $0.4 million, respectively. At January 31, 2015: (i) there were no outstanding stock options; and (ii) there was no unrecognized compensation cost related to nonvested stock options. See Note 11 for a further discussion of stock options. Income Taxes Discontinued Operations Comprehensive Income New Accounting Pronouncements – Revenue from Contracts with Customers Effective February 1, 2015, the Company was required to adopt ASU 2014-08. Under this new guidance, only disposals of a component that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results are to be classified as a discontinued operation. The adoption of ASU 2014-08 resulted in the Company classifying sales of individual real estate properties as continuing operations instead of discontinued operations as the sale of individual properties does not represent a strategic shift for the Company (for sales occurring subsequent to January 31, 2015). Effective February 1, 2017, the Company will be required to adopt the amended guidance in ASC Topic 330, “ Inventory: Simplifying the Measurement of Inventory” Effective January 1, 2018, the Company will be required to adopt ASU 2015-17, “ Balance Sheet Classification of Deferred Taxes Effective February 1, 2019, the Company will be required to adopt ASU 2016 - 02, “Leases (Topic 842)

INVESTMENTS AND DEPOSITS

INVESTMENTS AND DEPOSITS	12 Months Ended
	Jan. 31, 2016
Investments And Deposits [Abstract]
Investments And Deposits [Text Block]	2. INVESTMENTS The Company’s equity method investments are accounted for under ASC 323 “ Investments-Equity Method and Joint Ventures Entity Ownership Percentage Carrying Amount January 31, 2016 Carrying Amount January 31, 2015 Big River Resources, LLC 9.7% $ 38,707 $ 40,188 Patriot Holdings, LLC (sold June 1, 2015) N/A — 40,201 Total Equity Method Investments $ 38,707 $ 80,389 The Company invested $20.0 million in Big River, a holding company for several entities, for a 9.7% ownership interest. Big River Resources West Burlington, LLC, a wholly owned subsidiary of Big River, operates an ethanol manufacturing plant in West Burlington, Iowa. During fiscal year 2015, the plant shipped 106 million gallons of ethanol. The plant has been in operation since 2004. Big River Resources Galva, LLC, a wholly owned subsidiary of Big River, operates an ethanol manufacturing plant in Galva, Illinois. During fiscal year 2015, the plant shipped 118 million gallons of ethanol. The plant has been in operation since 2009. Big River Resources United Energy, LLC, a 55.3% owned subsidiary of Big River, operates an ethanol manufacturing plant in Dyersville, Iowa. During fiscal year 2015, the plant shipped 123 million gallons of ethanol. Big River acquired a 50.5% ownership interest in this plant in 2009 and increased its ownership to 55.3% during fiscal year 2015. Big River Resources Boyceville, LLC, a wholly owned subsidiary of Big River, operates an ethanol manufacturing plant in Boyceville, Wisconsin. During fiscal year 2015, the plant shipped 58 million gallons of ethanol. Big River acquired its interest in this plant in 2011. The Company recorded income of approximately $6.0 million, $18.2 million and $8.8 million as its share of earnings from Big River during fiscal years 2015, 2014 and 2013, respectively. The Company received dividends of approximately $7.5 million, $18.0 million and $1.2 million from Big River during fiscal years 2015, 2014 and 2013, respectively. At January 31, 2016, the carrying value of the investment in Big River is approximately $38.7 million; the amount of underlying equity in the net assets of Big River is approximately $36.7 million. The Company invested $17.9 million in Patriot for a 27% ownership interest. Patriot operated an ethanol manufacturing plant in Annawan, Illinois. On June 1, 2015, Patriot and a subsidiary of CHS Inc. (“CHS”) completed a merger that resulted in CHS acquiring 100% of the ownership interest in Patriot. The Company received a cash payment of approximately $45.5 million at the closing, representing its proportionate share of the merger consideration for its 27% ownership interest. The total merger consideration was approximately $196 million in cash subject to certain adjustments and certain escrow holdbacks. In connection with this transaction, the Company recognized a gain of approximately $10.4 million based on the Company’s carrying value of approximately $39.0 million at the time of sale. At January 31, 2016, the Company has approximately $4.4 million in accounts receivable on the accompanying Consolidated Balance Sheets related to estimated escrow proceeds that were recognized as income. The Company recorded approximately $45.5 million as a source of cash investing activity in the Consolidated Statements of Cash Flows. The estimated escrow proceeds of approximately $4.4 million is a non-cash investing activity. The Company expects that a determination of the final payment of escrowed proceeds to be received will occur by December of 2016. The Company recorded income of approximately $2.9 million, $14.0 million and $8.4 million as its share of earnings from Patriot during fiscal years 2015, 2014 and 2013, respectively. The Company received dividends of approximately $3.6 million, $4.9 million and $4.6 million from Patriot during fiscal years 2015, 2014 and 2013, respectively. Undistributed earnings of equity method investees totaled approximately $18.7 million and $41.9 million at January 31, 2016 and 2015, respectively. Summarized financial information for the Company’s equity method investees, as of their fiscal year end is presented in the following table (amounts in thousands): As of December 31, 2015 Big River Current assets $ 137,758 Non current assets 341,907 Total assets $ 479,665 Current liabilities $ 49,224 Long-term liabilities — Total liabilities $ 49,224 Noncontrolling interests $ 48,156 As of December 31, 2014 Patriot Big River Current assets $ 56,272 $ 180,186 Non current assets 158,828 343,182 Total assets $ 215,100 $ 523,368 Current liabilities $ 19,205 $ 57,130 Long-term liabilities 49,542 — Total liabilities $ 68,747 $ 57,130 Noncontrolling interests $ — $ 46,913 Summarized financial information for each of the Company’s equity method investees is presented in the following table for the years ended December 31, 2015, 2014 and 2013 (amounts in thousands): Year Ended December 31, 2015 Patriot (1) Big River Net sales and revenue $ 115,614 $ 863,554 Gross profit $ 14,424 $ 85,451 Income from continuing operations $ 11,100 $ 62,193 Net income $ 11,100 $ 62,193 (1) For Patriot, results are for the five month period ended May 31, 2015 as the Company’s equity interest in Patriot was sold June 1, 2015. Year Ended December 31, 2014 Patriot Big River Net sales and revenue $ 331,260 $ 1,184,505 Gross profit $ 59,980 $ 241,963 Income from continuing operations $ 52,875 $ 187,388 Net income $ 52,875 $ 187,388 Year Ended December 31, 2013 Patriot Big River Net sales and revenue $ 377,532 $ 1,292,120 Gross profit $ 37,411 $ 124,327 Income from continuing operations $ 31,518 $ 90,729 Net income $ 31,518 $ 90,729 Big River has debt agreements that limit and restrict amounts the entity can pay in the form of dividends or advances to owners. The restricted net assets of Big River at January 31, 2016 are approximately $306.3 million. At January 31, 2016, the Company’s proportionate share of restricted net assets of Big River is approximately $29.7 million.

FAIR VALUE

FAIR VALUE	12 Months Ended
	Jan. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	3. FAIR VALUE The Company applies ASC 820, which 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, which 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 certain cash equivalents, investments and derivative liabilities at fair value. The fair values of derivative assets and liabilities traded in the over-the-counter market are determined using quantitative models that require the use of multiple market inputs including interest rates, prices and indices to generate pricing and volatility factors, which are used to value the position. The predominance of market inputs are actively quoted and can be validated through external sources, including brokers, market transactions and third-party pricing services. 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 are determined by using various models that discount future expected cash flows. To ensure the prudent application of estimates and management judgment in determining the fair value of derivative assets and liabilities and property and equipment, various processes and controls have been adopted, which include: (i) model validation that requires a review and approval for pricing, financial statement fair value determination and risk quantification; and (ii) periodic review and substantiation of profit and loss reporting for all derivative instruments. Financial assets and liabilities measured at fair value at January 31, 2016 on a recurring basis are summarized below (amounts in thousands): Level 1 Level 2 Level 3 Total Fair Value Investment in cooperative (1) $ — $ — $ 333 $ 333 Forward purchase contracts liability (2) $ — $ 312 $ — $ 312 Commodity futures (3) — — — — Total liabilities $ — $ 312 $ — $ 312 Financial assets and liabilities measured at fair value at January 31, 2015 on a recurring basis are summarized below (amounts in thousands): Level 1 Level 2 Level 3 Total Investment in cooperative (1) $ — $ — $ 333 $ 333 (1) The investment in cooperative is included in “Other assets” on the accompanying Consolidated Balance Sheets. (2) The forward purchase contract liability is included in “Accrued expenses and other current liabilities” on the accompanying Consolidated Balance Sheets. (3) The commodity futures are included in “Accrued expenses and other current liabilities” on the accompanying Consolidated Balance Sheets. The following table provides a reconciliation of the activity related to assets measured at fair value on a recurring basis using Level 3 inputs (amounts in thousands): Investment in Balance, January 31, 2014 $ 289 Fair value adjustment 44 Balance, January 31, 2015 333 Fair value adjustment — Balance, January 31, 2016 $ 333 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. No other financial instruments were elected to be measured at fair value in accordance with ASC 470-20-25-21. The Company reviews its long-lived assets for impairment on at least an annual basis based on the carrying value of these assets. As a result of vacancies at owned real estate locations, the Company tested certain long-lived assets for impairment using a fair value measurement approach. The fair value measurement approach utilizes a number of significant unobservable inputs or Level 3 assumptions. These assumptions include, among others, the implied fair value of these assets using an income approach by preparing a discounted cash flow analysis and the implied fair value of these assets using recent sales data of comparable properties, and other subjective assumptions. Upon completion of its impairment analysis, which was performed at various times throughout fiscal year 2014, the Company determined that the carrying value of certain long-lived assets exceeded the fair value of these assets. Accordingly, in fiscal year 2014, the Company recorded long-lived asset impairment charges of approximately $68,000. There were no assets measured at fair value at January 31, 2016 and 2015 on a non-recurring basis.

OTHER ASSETS

OTHER ASSETS	12 Months Ended
	Jan. 31, 2016
Disclosure Text Block Supplement [Abstract]
Other Assets Disclosure [Text Block]	4. OTHER ASSETS The components of other noncurrent assets at January 31, 2016 and 2015 are as follows (amounts in thousands): January 31, 2016 2015 Real estate taxes refundable $ 5,091 $ 4,395 Deposits 664 914 Other 887 1,057 Total $ 6,642 $ 6,366 Real estate taxes refundable represent amounts due One Earth associated with refunds of previously paid taxes in connection with a tax increment financing arrangement with local taxing authorities. Deposits are with vendors and governmental authorities.

ACCRUED EXPENSES AND OTHER CURR

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES	12 Months Ended
	Jan. 31, 2016
Disclosure Text Block Supplement [Abstract]
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]	5. ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES The components of accrued expenses and other current liabilities at January 31, 2016 and 2015 are as follows (amounts in thousands): January 31, 2016 2015 Accrued utility charges $ 2,094 $ 3,085 Accrued payroll and related items 3,760 3,798 Accrued real estate taxes 2,564 2,507 Other 1,005 957 Total $ 9,423 $ 10,347

NET INCOME PER SHARE FROM CONTI

NET INCOME PER SHARE FROM CONTINUING OPERATIONS	12 Months Ended
	Jan. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	6. NET INCOME PER SHARE FROM CONTINUING OPERATIONS The Company reports net income per share in accordance with ASC 260, “ Earnings per Share The following table reconciles the basic and diluted net income per share amounts from continuing operations computations for each year presented for fiscal years 2015, 2014 and 2013 (amounts in thousands, except per-share amounts): 2015 Income Shares Per Share Basic net income per share from continuing operations attributable to REX common shareholders $ 31,436 7,297 $ 4.31 Effect of restricted stock 10 Diluted net income per share from continuing operations attributable to REX common shareholders $ 31,436 7,307 $ 4.30 2014 Income Shares Per Share Basic net income per share from continuing operations attributable to REX common shareholders $ 86,776 8,109 $ 10.70 Effect of stock options 9 Diluted net income per share from continuing operations attributable to REX common shareholders $ 86,776 8,118 $ 10.69 2013 Income Shares Per Share Basic net income per share from continuing operations attributable to REX common shareholders $ 34,007 8,137 $ 4.18 Effect of stock options 43 Diluted net income per share from continuing operations attributable to REX common shareholders $ 34,007 8,180 $ 4.16

LEASES

LEASES	12 Months Ended
	Jan. 31, 2016
Leases [Abstract]
Leases of Lessor Disclosure [Text Block]	7. LEASES At January 31, 2016, the Company has lease agreements, as lessee, for rail cars and a natural gas pipeline. All of the leases are accounted for as operating leases. As of January 31, 2016, future minimum annual rentals on such leases are as follows (amounts in thousands): Years Ended Minimum January 31, Rentals 2017 $ 7,340 2018 6,575 2019 5,845 2020 4,341 2021 2,778 Thereafter 4,169 $ 31,048

COMMON STOCK

COMMON STOCK	12 Months Ended
	Jan. 31, 2016
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	8. COMMON STOCK During fiscal years 2015, 2014 and 2013, the Company purchased 1,254,344 shares, 283,979 shares and 137,015 shares, respectively, of its common stock for approximately $70,208,000, $18,238,000 and $3,486,000, respectively. Included in these amounts are shares the Company received totaling 1,555 for the year ended January 31, 2015 as tenders of the exercise price of stock options exercised by certain officers and directors of the Company. The cost of these shares, determined as the fair market value on the date they were tendered, was approximately $100,000 for the year ended January 31, 2015. At January 31, 2016, the Company had prior authorization by its Board of Directors to purchase, in open market transactions, an additional 243,238 shares of its common stock. Information regarding the Company’s common stock is as follows (amounts in thousands): January 31, January 31, Authorized shares 45,000 45,000 Issued shares 29,853 29,853 Outstanding shares 6,648 7,900

REVOLVING LINES OF CREDIT

REVOLVING LINES OF CREDIT	12 Months Ended
	Jan. 31, 2016
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	9. REVOLVING LINES OF CREDIT Effective April 1, 2015, One Earth and NuGen each entered into $10.0 million revolving loan facilities that mature April 1, 2016. Any borrowings will be secured by the inventory and accounts receivable of One Earth or NuGen, specific to which entity borrows money under these facilities. These revolving loan facilities are recourse only to One Earth and NuGen and not to REX American Resources Corporation or any of its other subsidiaries. Borrowings under these facilities bear interest at the one month LIBOR rate plus 250 basis points. Neither One Earth nor NuGen had outstanding borrowings on the revolving loans during the year ended January 31, 2016. One Earth and NuGen are also subject to certain financial covenants under the revolving loan facilities, including working capital requirements, should they borrow on the loans.

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS	12 Months Ended
	Jan. 31, 2016
Disclosure Text Block Supplement [Abstract]
Financial Instruments Disclosure [Text Block]	10. DERIVATIVE FINANCIAL INSTRUMENTS The Company is exposed to various market risks, including changes in commodity prices (raw materials and finished goods). To manage risks associated with the volatility of these natural business exposures, the Company enters into commodity agreements and forward purchase (corn) and sale (ethanol, distillers grains and non-food grade corn oil) contracts. The Company does not purchase or sell derivative financial instruments for trading or speculative purposes. The Company does not purchase or sell derivative financial instruments for which a lack of marketplace quotations would require the use of fair value estimation techniques. The changes in fair value of these derivative financial instruments are recognized in current period earnings as the Company does not use hedge accounting. The following table provides information about the fair values of the Company’s derivative financial instruments and the line items on the Consolidated Balance Sheets in which the fair values are reflected (in thousands): Asset Derivatives Liability Derivatives Fair Value at Fair Value at 2016 2015 2016 2015 Commodity futures $ — $ — $ — $ — Forward purchase contracts (1) $ — $ — $ 312 $ — Total (1) Forward purchase contracts are included in accrued expenses and other current liabilities. These contracts are for purchases of approximately 0.7 million bushels of corn. As of January 31, 2016, all of the derivative financial instruments held by the Company were subject to enforceable master netting arrangements. The Company’s accounting policy is to offset positions amounts owed or owing with the same counterparty. As of January 31, 2016, the gross positions of the enforceable master netting agreements are not significantly different from the net positions presented in the table above. Depending on the amount of an unrealized loss on a derivative contract held by the Company, the counterparty may require collateral to secure the Company’s derivative contract position. As of January 31, 2016, the Company was required to maintain collateral with the counterparty in the amount of approximately $54,000 to secure the Company’s derivative liability position. See Note 3 which contains fair value information related to derivative financial instruments. The following table provides information about gains or losses recognized in income on the Company’s derivative financial instruments and the line items on the Consolidated Statements of Operations in which the fair values are reflected for fiscal years 2015, 2014 and 2013 (in thousands): 2015 2014 2013 Cost of sales $ (382 ) $ — $ —

EMPLOYEE BENEFITS

EMPLOYEE BENEFITS	12 Months Ended
	Jan. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	11. EMPLOYEE BENEFITS The Company maintains the REX 2015 Incentive Plan, approved by its shareholders, which a reserves a total of 550,000 shares of common stock for issuance pursuant to its terms. The plan provides for the granting of shares of stock, including options to purchase shares of common stock, stock appreciation rights tied to the value of common stock, restricted stock, and restricted stock unit awards to eligible employees, non-employee directors and consultants. The Company measures share-based compensation grants at fair value on the grant date, adjusted for estimated forfeitures. The Company records noncash compensation expense related to equity awards in its consolidated financial statements over the requisite service period on a straight-line basis. All of the Company’s existing share-based compensation awards have been determined to be equity awards. At January 31, 2016, 546,832 shares remain available for issuance under the Plan. As a component of their compensation, restricted stock has been granted to directors at the market price of REX common stock on the date of the grant. In addition one third of executives’ incentive compensation is payable by an award of restricted stock based on the then market price of REX common stock. The following table summarizes non-vested restricted stock award activity for fiscal year ended 2015: 2015 Weighted Weighted Average Grant Average Vesting Non-Vested Date Fair Value Term Shares (000’s) (in years) Non-Vested at January 31, 2015 — $ — Granted 3,168 200 Forfeited — — Vested — — Non-Vested at January 31, 2016 3,168 $ 200 2 At January 31, 2016, unrecognized compensation cost related to nonvested restricted stock was approximately $136,000. The following summarizes stock option activity for fiscal years 2014 and 2013: 2014 2013 Weighted Weighted Average Average Shares Exercise Shares Exercise (000’s) Price (000’s) Price Outstanding—Beginning of year 84 $ 12.37 169 $ 12.46 Exercised (84 ) 12.37 (85 ) 12.55 Canceled or expired — — — — Outstanding—End of year — 84 $ 12.37 Exercisable—End of year — 84 $ 12.37

COMMITMENTS

COMMITMENTS	12 Months Ended
	Jan. 31, 2016
Disclosure Text Block Supplement [Abstract]
Commitments Disclosure [Text Block]	12. COMMITMENTS One Earth and NuGen have combined forward purchase contracts for approximately 14.0 million bushels of corn, the principal raw material for their ethanol plants. They expect to take delivery of the corn through May 2016. One Earth and NuGen have combined sales commitments for approximately 51.7 million gallons of ethanol, 63,000 tons of distillers grains and 10.5 million pounds of non-food grade corn oil. They expect to deliver the ethanol, distillers grains and corn oil through June 2016. One Earth has entered into an agreement with an unrelated party for the use of a portion of the party’s natural gas pipeline. The term of the agreement is 10 years, and the amount is $4,380,000, which is paid over 120 equal monthly installments of $36,500. Payments began in February 2009. One Earth paid approximately $438,000 pursuant to the lease in each of fiscal years 2015, 2014 and 2013. One Earth and NuGen have entered into agreements with unrelated parties for the lease of railcars that will be used to ship ethanol and distillers grains. These leases expire on various dates through September 30, 2022. One Earth and NuGen pay a monthly lease amount per railcar. One Earth and NuGen combined paid approximately $7,221,000, $7,024,000 and $6,405,000 pursuant to the leases in fiscal years 2015, 2014 and 2013, respectively. One Earth and NuGen each have a contract with an unrelated party (“Distillers Grains Marketer”) for distillers grains marketing services. Under the terms of the contracts, the Distillers Grains Marketers will purchase all of One Earth’s and NuGen’s distillers grains production during the term of the contracts. The contracts call for One Earth and NuGen to pay a fee per ton of distillers grains for the Distillers Grains Marketers’ services. The terms of the agreements are for one year and shall renew automatically for additional one year terms, unless either party sends notice to the other party of its intent to terminate the agreement at least 90 days prior to the expiration of the then current term of the agreement. One Earth and NuGen incurred fees of approximately $1,169,000, $1,190,000 and $1,478,000 in fiscal years 2015, 2014 and 2013, respectively, for these marketing services. One Earth has a grain origination agreement with Alliance Grain, a minority equity owner, under which it purchased 100% of its grain during fiscal years 2015, 2014 and 2013. One Earth pays to Alliance Grain a certain amount per bushel for procurement fees. The term of the agreement expires October 31, 2016, and shall renew automatically for additional one year terms, unless either party sends notice to the other party of its intent to terminate the agreement at least 180 days prior to the expiration of the then current term of the agreement.

INCOME TAXES

INCOME TAXES	12 Months Ended
	Jan. 31, 2016
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	13. INCOME TAXES The provision for income taxes from continuing operations for fiscal years 2015, 2014 and 2013 consists of the following (amounts in thousands): 2015 2014 2013 Federal: Current $ 15,804 $ 23,452 $ 2,974 Deferred (2,867 ) 20,717 15,402 12,937 44,169 18,376 State and Local: Current 2,651 3,536 2,154 Deferred (1,480 ) 1,944 221 1,171 5,480 2,375 Provision for income taxes $ 14,108 $ 49,649 $ 20,751 The tax effects of significant temporary differences representing deferred tax assets and liabilities are as follows as of January 31, 2016 and 2015 (amounts in thousands): January 31, 2016 2015 Assets: Accrued liabilities $ 915 $ 664 AMT credit carryforward — 4,015 State net operating loss carryforward 1,147 1,343 Other items 198 624 Valuation allowance (1,151 ) (1,752 ) Total 1,109 4,894 Liabilities: Basis in pass through entities, including depreciation (37,834 ) (44,783 ) Other (543 ) (516 ) Total (38,377 ) (45,299 ) Net deferred tax liability $ (37,268 ) $ (40,405 ) The Company has state net operating loss carryforwards of approximately $14,860,000, net of the federal benefit, which will begin to expire in fiscal year 2019. The Company has a valuation allowance of approximately $1,151,000 at January 31, 2016. The Company decreased the valuation allowance by $601,000 and $265,000 in fiscal years 2015 and 2014, respectively and increased the valuation allowance by $126,000 in fiscal year 2013. These adjustments to the valuation allowance are a result of estimates of realizing certain future state tax benefits and federal capital loss carryforwards. The Company paid income taxes of approximately $20,253,000, $30,142,000 and $3,450,000 in fiscal years 2015, 2014 and 2013, respectively. The Company received refunds of income taxes of approximately $132,000, $53,000 and $38,000 in fiscal years 2015, 2014 and 2013, respectively. The effective income tax rate on consolidated pre-tax income or loss differs from the federal income tax statutory rate for fiscal years 2015, 2014 and 2013 as follows: 2015 2014 2013 Federal income tax at statutory rate 35.0 % 35.0 % 35.0 % State and local taxes, net of federal tax benefit (1.3 ) 3.6 4.5 Net change in valuation allowance (1.2 ) (0.2 ) 0.2 Domestic production activities deduction (1.7 ) (1.1 ) (1.5 ) Uncertain tax positions 1.0 — (0.1 ) Noncontrolling interest (4.4 ) (4.0 ) (3.4 ) Other — (0.8 ) (0.1 ) Total 27.4 % 32.5 % 34.6 % 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 fiscal years ended January 31, 2010 and prior. The Company applies the provisions of ASC 740-10-25-5 for uncertain tax positions. As of January 31, 2016, total unrecognized tax benefits were approximately $987,000. There were no accrued penalties and interest at January 31, 2016. If the Company were to prevail on all unrecognized tax benefits recorded, the provision for income taxes would be reduced by approximately $987,000. 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. It is reasonably possible that the amount of the unrecognized tax benefit with respect to certain unrecognized tax positions will increase or decrease during the next 12 months; however, the Company does not expect the change to have a material effect on results of operations or financial position. A reconciliation of the beginning and ending amount of unrecognized tax benefits, including interest and penalties, is as follows (dollars in thousands): Years Ended January 31, 2016 2015 Unrecognized tax benefits, beginning of year $ 1,658 $ 1,862 Changes for tax positions for prior years (1,658 ) (204 ) Changes for tax positions for current year 987 — Unrecognized tax benefits, end of year $ 987 $ 1,658

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS	12 Months Ended
	Jan. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	14. DISCONTINUED OPERATIONS During fiscal year 2009, the Company completed the exit of its retail business. Accordingly, certain operations of the Company’s former retail operations and certain sold properties had been classified as discontinued operations prior to the prospective adoption of ASU 2014-08 effective February 1, 2015. No items were reclassified as discontinued operations for fiscal year 2015. Below is a table reflecting certain items of the Consolidated Statements of Operations that were reclassified as discontinued operations for fiscal years 2014 and 2013 (amounts in thousands): 2014 2013 Net sales and revenue $ 47 $ 1,512 Cost of sales $ (321 ) $ 732 Income before income taxes $ 368 $ 538 Provision for income taxes (134 ) (213 ) Income from discontinued operations, net of tax $ 234 $ 325 Gain on disposal before provision for income taxes $ 513 $ 1,226 Provision for income taxes (186 ) (485 ) Gain on disposal of discontinued operations, net of tax $ 327 $ 741

CONTINGENCIES

CONTINGENCIES	12 Months Ended
	Jan. 31, 2016
Loss Contingency [Abstract]
Contingencies Disclosure [Text Block]	15. CONTINGENCIES The Company is involved in various legal actions arising in the normal course of business. After taking into consideration legal counsels’ evaluation of such actions, management is of the opinion that their outcome will not have a material effect on the Company’s consolidated financial statements. There were no liabilities recorded at January 31, 2016 or 2015 as the Company did not believe that there was a probable and reasonably estimable loss associated with any legal contingencies.

NET SALES AND REVENUE

NET SALES AND REVENUE	12 Months Ended
	Jan. 31, 2016
Net Sales And Revenue [Abstract]
Net Sales And Revenue [Text Block]	16. NET SALES AND REVENUE The following table summarizes sales for each product and service group for the periods presented (amounts in thousands): Fiscal Year Product or Service Category 2015 2014 2013 Ethanol $ 333,200 $ 452,831 $ 500,203 Dried distillers grains 81,116 96,328 125,575 Non-food grade corn oil 15,510 16,985 18,788 Modified distillers grains 5,999 4,814 18,998 Other 663 1,272 2,481 Total $ 436,488 $ 572,230 $ 666,045 All of the Company’s ethanol and distillers grains are sold in the domestic market. The Company’s distillers grains marketers make all decisions with regard to where products they purchase from the Company are distributed.

QUARTERLY UNAUDITED INFORMATION

QUARTERLY UNAUDITED INFORMATION	12 Months Ended
	Jan. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Text Block]	17. QUARTERLY UNAUDITED INFORMATION The following tables set forth the Company’s net sales and revenue, gross profit, net income and net income per share (basic and diluted) for each quarter during the last two fiscal years. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Quarters Ended (In Thousands, Except Per Share Amounts) April 30, July 31, October 31, January 31, 2015 2015 2015 2016 Net sales and revenue $ 105,197 $ 113,480 $ 110,584 $ 107,227 Gross profit 9,127 18,276 14,273 9,158 Net income 4,439 18,711 9,433 4,827 Net income attributable to REX common shareholders 3,927 16,367 7,456 3,686 Basic net income per share attributable to REX common shareholders (a) $ 0.50 $ 2.16 $ 1.08 $ 0.54 Diluted net income per share attributable to REX common shareholders (a) $ 0.50 $ 2.16 $ 1.08 $ 0.54 Quarters Ended (In Thousands, Except Per Share Amounts) April 30, July 31, October 31, January 31, 2014 2014 2014 2015 Net sales and revenue $ 155,924 $ 150,231 $ 138,424 $ 127,651 Gross profit 36,636 38,838 36,491 29,974 Net income 24,200 26,718 28,589 24,207 Net income attributable to REX common shareholders 21,742 21,907 23,340 20,348 Basic net income per share attributable to REX common shareholders $ 2.68 $ 2.68 $ 2.86 $ 2.55 Diluted net income per share attributable to REX common shareholders $ 2.67 $ 2.68 $ 2.86 $ 2.55 a) The total of the quarterly net income per share amounts do not equal the annual net income per share amounts due to the impact of varying amounts of shares outstanding during the year.

RELATED PARTIES

RELATED PARTIES	12 Months Ended
	Jan. 31, 2016
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	18. RELATED PARTIES During fiscal years 2015 and 2014, One Earth and NuGen purchased approximately $148.2 million and $164.7 million, respectively, of corn from minority equity investors.

Schedule II - VALUATION AND QUA

Schedule II - VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Jan. 31, 2016
Valuation and Qualifying Accounts [Abstract]
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	Schedule II - VALUATION AND QUALIFYING ACCOUNTS FOR THE YEARS ENDED JANUARY 31, 2016, 2015 AND 2014 (Amounts in thousands) Additions Deductions Balance Charged to Charges for Balance Beginning Cost and Which Reserves End of Year Expenses Were Created of Year 2016: Deferred tax valuation allowance $ 1,752 $ — $ 601 $ 1,151 2015: Deferred tax valuation allowance $ 2,017 $ — $ 265 $ 1,752 2014: Deferred tax valuation allowance $ 1,891 $ 126 $ — $ 2,017

Accounting Policies, by Policy

Accounting Policies, by Policy (Policies)	12 Months Ended
	Jan. 31, 2016
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation –
Fiscal Period, Policy [Policy Text Block]	Fiscal Year –
Segment Reporting, Policy [Policy Text Block]	Segments – Segment Reporting
Use of Estimates, Policy [Policy Text Block]	Use of Estimates –
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash Equivalents –
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations of Risk –
Inventory, Policy [Policy Text Block]	Inventory . 2016 2015 Ethanol and other finished goods $ 3,105 $ 3,039 Work in process 2,652 2,609 Grain and other raw materials 11,421 12,414 Total $ 17,178 $ 18,062
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment – 2016 2015 Land and improvements $ 21,598 $ 20,844 Buildings and improvements 24,543 27,069 Machinery, equipment and fixtures 237,735 231,422 Construction in progress 6,094 1,290 289,970 280,625 Less: accumulated depreciation (99,994 ) (86,178 ) Total $ 189,976 $ 194,447 In accordance with ASC 360-05 “ Impairment or Disposal of Long-Lived Assets 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). Depreciation expense was approximately $18,638,000, $16,387,000 and $16,915,000 in fiscal years 2015, 2014 and 2013, respectively.
Investment, Policy [Policy Text Block]	Investments and Deposits – 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 Statements of Operations and a new cost basis in the investment is established.
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition
Cost of Sales, Policy [Policy Text Block]	Costs of Sales –
Selling, General and Administrative Expenses, Policy [Policy Text Block]	Selling, General and Administrative Expenses –
Interest Expense, Policy [Policy Text Block]	Interest Expense –
Fair Value of Financial Instruments, Policy [Policy Text Block]	Financial Instruments The Company uses derivative financial instruments (exchange-traded futures contracts) to manage a portion of the risk associated with changes in commodity prices, primarily related to corn. The Company monitors and manages this exposure as part of its overall risk management policy. As such, the Company seeks to reduce the potentially adverse effects that the volatility of these markets may have on its operating results. The Company may take hedging positions in these commodities as one way to mitigate risk. While the Company attempts to link its hedging activities to purchase and sale activities, there are situations in which these hedging activities can themselves result in losses. The Company does not hold or issue derivative financial instruments for trading or speculative purposes. The Company used derivative financial instruments to manage its balance of fixed and variable rate debt. 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 agreement was not designated for hedge accounting pursuant to ASC 815. The interest rate swap was recorded at its fair value and the changes in fair values were recorded as gain or loss on derivative financial instruments in the Consolidated Statements of Operations. The Company paid settlements of interest rate swaps of approximately $1,142,000 and $1,687,000 in fiscal years 2014 and 2013, respectively.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock Compensation The Company had stock-based compensation plans under which stock options had been granted to directors, officers and key employees. These plans were terminated in fiscal year 2015. The total intrinsic value of options (granted pursuant to these terminated plans) exercised in the years ended January 31, 2015 and 2014 was approximately $4.0 million and $1.1 million, respectively, resulting in tax deductions to realize benefits of approximately $0.8 million and $0.4 million, respectively. At January 31, 2015: (i) there were no outstanding stock options; and (ii) there was no unrecognized compensation cost related to nonvested stock options. See Note 11 for a further discussion of stock options.
Income Tax, Policy [Policy Text Block]	Income Taxes
Discontinued Operation [Policy Text Block]	Discontinued Operations
Comprehensive Income, Policy [Policy Text Block]	Comprehensive Income
New Accounting Pronouncements, Policy [Policy Text Block]	New Accounting Pronouncements – Revenue from Contracts with Customers Effective February 1, 2015, the Company was required to adopt ASU 2014-08. Under this new guidance, only disposals of a component that represent a strategic shift that has (or will have) a major effect on an entity’s operations and financial results are to be classified as a discontinued operation. The adoption of ASU 2014-08 resulted in the Company classifying sales of individual real estate properties as continuing operations instead of discontinued operations as the sale of individual properties does not represent a strategic shift for the Company (for sales occurring subsequent to January 31, 2015). Effective February 1, 2017, the Company will be required to adopt the amended guidance in ASC Topic 330, “ Inventory: Simplifying the Measurement of Inventory” Effective January 1, 2018, the Company will be required to adopt ASU 2015-17, “ Balance Sheet Classification of Deferred Taxes Effective February 1, 2019, the Company will be required to adopt ASU 2016 - 02, “Leases (Topic 842)

SUMMARY OF SIGNIFICANT ACCOUN27

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Jan. 31, 2016
Accounting Policies [Abstract]
Schedule of Inventory, Current [Table Text Block]	The components of inventory at January 31, 2016, and January 31, 2015 are as follows (amounts in thousands): 2016 2015 Ethanol and other finished goods $ 3,105 $ 3,039 Work in process 2,652 2,609 Grain and other raw materials 11,421 12,414 Total $ 17,178 $ 18,062
Property, Plant and Equipment [Table Text Block]	The components of property and equipment at January 31, 2016 and 2015 are as follows (amounts in thousands): 2016 2015 Land and improvements $ 21,598 $ 20,844 Buildings and improvements 24,543 27,069 Machinery, equipment and fixtures 237,735 231,422 Construction in progress 6,094 1,290 289,970 280,625 Less: accumulated depreciation (99,994 ) (86,178 ) Total $ 189,976 $ 194,447

INVESTMENTS AND DEPOSITS (Table

INVESTMENTS AND DEPOSITS (Tables)	12 Months Ended
	Jan. 31, 2016
Investments And Deposits [Abstract]
Equity Method Investments [Table Text Block]	The following table summarizes these investments at January 31, 2016 and 2015 (amounts in thousands): Entity Ownership Percentage Carrying Amount January 31, 2016 Carrying Amount January 31, 2015 Big River Resources, LLC 9.7% $ 38,707 $ 40,188 Patriot Holdings, LLC (sold June 1, 2015) N/A — 40,201 Total Equity Method Investments $ 38,707 $ 80,389
Condensed Balance Sheet [Table Text Block]	Summarized financial information for the Company’s equity method investees, as of their fiscal year end is presented in the following table (amounts in thousands): As of December 31, 2015 Big River Current assets $ 137,758 Non current assets 341,907 Total assets $ 479,665 Current liabilities $ 49,224 Long-term liabilities — Total liabilities $ 49,224 Noncontrolling interests $ 48,156 As of December 31, 2014 Patriot Big River Current assets $ 56,272 $ 180,186 Non current assets 158,828 343,182 Total assets $ 215,100 $ 523,368 Current liabilities $ 19,205 $ 57,130 Long-term liabilities 49,542 — Total liabilities $ 68,747 $ 57,130 Noncontrolling interests $ — $ 46,913
Schedule of Financial Information for Equity Method Investments [Table Text Block]	Summarized financial information for each of the Company’s equity method investees is presented in the following table for the years ended December 31, 2015, 2014 and 2013 (amounts in thousands): Patriot (1) Big River Net sales and revenue $ 115,614 $ 863,554 Gross profit $ 14,424 $ 85,451 Income from continuing operations $ 11,100 $ 62,193 Net income $ 11,100 $ 62,193 Patriot Big River Net sales and revenue $ 331,260 $ 1,184,505 Gross profit $ 59,980 $ 241,963 Income from continuing operations $ 52,875 $ 187,388 Net income $ 52,875 $ 187,388 Patriot Big River Net sales and revenue $ 377,532 $ 1,292,120 Gross profit $ 37,411 $ 124,327 Income from continuing operations $ 31,518 $ 90,729 Net income $ 31,518 $ 90,729

FAIR VALUE (Tables)

FAIR VALUE (Tables)	12 Months Ended
	Jan. 31, 2016
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Financial assets and liabilities measured at fair value at January 31, 2016 on a recurring basis are summarized below (amounts in thousands): Level 1 Level 2 Level 3 Total Fair Value Investment in cooperative (1) $ — $ — $ 333 $ 333 Forward purchase contracts liability (2) $ — $ 312 $ — $ 312 Commodity futures (3) — — — — Total liabilities $ — $ 312 $ — $ 312 Level 1 Level 2 Level 3 Total Investment in cooperative (1) $ — $ — $ 333 $ 333 (1) The investment in cooperative is included in “Other assets” on the accompanying Consolidated Balance Sheets. (2) The forward purchase contract liability is included in “Accrued expenses and other current liabilities” on the accompanying Consolidated Balance Sheets. (3) The commodity futures are included in “Accrued expenses and other current liabilities” on the accompanying Consolidated Balance Sheets.
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 measured at fair value on a recurring basis using Level 3 inputs (amounts in thousands): Investment in Balance, January 31, 2014 $ 289 Fair value adjustment 44 Balance, January 31, 2015 333 Fair value adjustment — Balance, January 31, 2016 $ 333

OTHER ASSETS (Tables)

OTHER ASSETS (Tables)	12 Months Ended
	Jan. 31, 2016
Disclosure Text Block Supplement [Abstract]
Schedule of Other Assets [Table Text Block]	The components of other noncurrent assets at January 31, 2016 and 2015 are as follows (amounts in thousands): January 31, 2016 2015 Real estate taxes refundable $ 5,091 $ 4,395 Deposits 664 914 Other 887 1,057 Total $ 6,642 $ 6,366

ACCRUED EXPENSES AND OTHER CU31

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables)	12 Months Ended
	Jan. 31, 2016
Disclosure Text Block Supplement [Abstract]
Other Current Liabilities [Table Text Block]	The components of accrued expenses and other current liabilities at January 31, 2016 and 2015 are as follows (amounts in thousands): January 31, 2016 2015 Accrued utility charges $ 2,094 $ 3,085 Accrued payroll and related items 3,760 3,798 Accrued real estate taxes 2,564 2,507 Other 1,005 957 Total $ 9,423 $ 10,347

NET INCOME PER SHARE FROM CON32

NET INCOME PER SHARE FROM CONTINUING OPERATIONS (Tables)	12 Months Ended
	Jan. 31, 2016
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The following table reconciles the basic and diluted net income per share amounts from continuing operations computations for each year presented for fiscal years 2015, 2014 and 2013 (amounts in thousands, except per-share amounts): 2015 Income Shares Per Share Basic net income per share from continuing operations attributable to REX common shareholders $ 31,436 7,297 $ 4.31 Effect of restricted stock 10 Diluted net income per share from continuing operations attributable to REX common shareholders $ 31,436 7,307 $ 4.30 2014 Income Shares Per Share Basic net income per share from continuing operations attributable to REX common shareholders $ 86,776 8,109 $ 10.70 Effect of stock options 9 Diluted net income per share from continuing operations attributable to REX common shareholders $ 86,776 8,118 $ 10.69 2013 Income Shares Per Share Basic net income per share from continuing operations attributable to REX common shareholders $ 34,007 8,137 $ 4.18 Effect of stock options 43 Diluted net income per share from continuing operations attributable to REX common shareholders $ 34,007 8,180 $ 4.16

LEASES (Tables)

LEASES (Tables)	12 Months Ended
	Jan. 31, 2016
Leases [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	At January 31, 2016, the Company has lease agreements, as lessee, for rail cars and a natural gas pipeline. All of the leases are accounted for as operating leases. As of January 31, 2016, future minimum annual rentals on such leases are as follows (amounts in thousands): Years Ended Minimum January 31, Rentals 2017 $ 7,340 2018 6,575 2019 5,845 2020 4,341 2021 2,778 Thereafter 4,169 $ 31,048

COMMON STOCK (Tables)

COMMON STOCK (Tables)	12 Months Ended
	Jan. 31, 2016
Stockholders' Equity Note [Abstract]
Schedule of Stock by Class [Table Text Block]	Information regarding the Company’s common stock is as follows (amounts in thousands): January 31, January 31, Authorized shares 45,000 45,000 Issued shares 29,853 29,853 Outstanding shares 6,648 7,900

DERIVATIVE FINANCIAL INSTRUME35

DERIVATIVE FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Jan. 31, 2016
Disclosure Text Block Supplement [Abstract]
Schedule of Derivative Assets at Fair Value [Table Text Block]	The following table provides information about the fair values of the Company’s derivative financial instruments and the line items on the Consolidated Balance Sheets in which the fair values are reflected (in thousands): Asset Derivatives Liability Derivatives Fair Value at Fair Value at 2016 2015 2016 2015 Commodity futures $ — $ — $ — $ — Forward purchase contracts (1) $ — $ — $ 312 $ — Total (1) Forward purchase contracts are included in accrued expenses and other current liabilities. These contracts are for purchases of approximately 0.7 million bushels of corn.
Derivative Instruments, Gain (Loss) [Table Text Block]	The following table provides information about gains or losses recognized in income on the Company’s derivative financial instruments and the line items on the Consolidated Statements of Operations in which the fair values are reflected for fiscal years 2015, 2014 and 2013 (in thousands): 2015 2014 2013 Cost of sales $ (382 ) $ — $ —

EMPLOYEE BENEFITS (Tables)

EMPLOYEE BENEFITS (Tables)	12 Months Ended
	Jan. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Nonvested Restricted Stock Shares Activity [Table Text Block]	The following table summarizes non-vested restricted stock award activity for fiscal year ended 2015: 2015 Weighted Weighted Average Grant Average Vesting Non-Vested Date Fair Value Term Shares (000’s) (in years) Non-Vested at January 31, 2015 — $ — Granted 3,168 200 Forfeited — — Vested — — Non-Vested at January 31, 2016 3,168 $ 200 2
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price [Table Text Block]	The following summarizes stock option activity for fiscal years 2014 and 2013: 2014 2013 Weighted Weighted Average Average Shares Exercise Shares Exercise (000’s) Price (000’s) Price Outstanding—Beginning of year 84 $ 12.37 169 $ 12.46 Exercised (84 ) 12.37 (85 ) 12.55 Canceled or expired — — — — Outstanding—End of year — 84 $ 12.37 Exercisable—End of year — 84 $ 12.37

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Jan. 31, 2016
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	The provision for income taxes from continuing operations for fiscal years 2015, 2014 and 2013 consists of the following (amounts in thousands): 2015 2014 2013 Federal: Current $ 15,804 $ 23,452 $ 2,974 Deferred (2,867 ) 20,717 15,402 12,937 44,169 18,376 State and Local: Current 2,651 3,536 2,154 Deferred (1,480 ) 1,944 221 1,171 5,480 2,375 Provision for income taxes $ 14,108 $ 49,649 $ 20,751
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	The tax effects of significant temporary differences representing deferred tax assets and liabilities are as follows as of January 31, 2016 and 2015 (amounts in thousands): January 31, 2016 2015 Assets: Accrued liabilities $ 915 $ 664 AMT credit carryforward — 4,015 State net operating loss carryforward 1,147 1,343 Other items 198 624 Valuation allowance (1,151 ) (1,752 ) Total 1,109 4,894 Liabilities: Basis in pass through entities, including depreciation (37,834 ) (44,783 ) Other (543 ) (516 ) Total (38,377 ) (45,299 ) Net deferred tax liability $ (37,268 ) $ (40,405 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	The effective income tax rate on consolidated pre-tax income or loss differs from the federal income tax statutory rate for fiscal years 2015, 2014 and 2013 as follows: 2015 2014 2013 Federal income tax at statutory rate 35.0 % 35.0 % 35.0 % State and local taxes, net of federal tax benefit (1.3 ) 3.6 4.5 Net change in valuation allowance (1.2 ) (0.2 ) 0.2 Domestic production activities deduction (1.7 ) (1.1 ) (1.5 ) Uncertain tax positions 1.0 — (0.1 ) Noncontrolling interest (4.4 ) (4.0 ) (3.4 ) Other — (0.8 ) (0.1 ) Total 27.4 % 32.5 % 34.6 %
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 (dollars in thousands): Years Ended January 31, 2016 2015 Unrecognized tax benefits, beginning of year $ 1,658 $ 1,862 Changes for tax positions for prior years (1,658 ) (204 ) Changes for tax positions for current year 987 — Unrecognized tax benefits, end of year $ 987 $ 1,658

DISCONTINUED OPERATIONS (Tables

DISCONTINUED OPERATIONS (Tables)	12 Months Ended
	Jan. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations [Table Text Block]	Below is a table reflecting certain items of the Consolidated Statements of Operations that were reclassified as discontinued operations for fiscal years 2014 and 2013 (amounts in thousands): 2014 2013 Net sales and revenue $ 47 $ 1,512 Cost of sales $ (321 ) $ 732 Income before income taxes $ 368 $ 538 Provision for income taxes (134 ) (213 ) Income from discontinued operations, net of tax $ 234 $ 325 Gain on disposal before provision for income taxes $ 513 $ 1,226 Provision for income taxes (186 ) (485 ) Gain on disposal of discontinued operations, net of tax $ 327 $ 741

NET SALES AND REVENUE (Tables)

NET SALES AND REVENUE (Tables)	12 Months Ended
	Jan. 31, 2016
Net Sales And Revenue [Abstract]
Revenue from External Customers by Products and Services [Table Text Block]	The following table summarizes sales for each product and service group for the periods presented (amounts in thousands): Fiscal Year Product or Service Category 2015 2014 2013 Ethanol $ 333,200 $ 452,831 $ 500,203 Dried distillers grains 81,116 96,328 125,575 Non-food grade corn oil 15,510 16,985 18,788 Modified distillers grains 5,999 4,814 18,998 Other 663 1,272 2,481 Total $ 436,488 $ 572,230 $ 666,045

QUARTERLY UNAUDITED INFORMATI40

QUARTERLY UNAUDITED INFORMATION (Tables)	12 Months Ended
	Jan. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Table Text Block]	The following tables set forth the Company’s net sales and revenue, gross profit, net income and net income per share (basic and diluted) for each quarter during the last two fiscal years. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Quarters Ended (In Thousands, Except Per Share Amounts) April 30, July 31, October 31, January 31, 2015 2015 2015 2016 Net sales and revenue $ 105,197 $ 113,480 $ 110,584 $ 107,227 Gross profit 9,127 18,276 14,273 9,158 Net income 4,439 18,711 9,433 4,827 Net income attributable to REX common shareholders 3,927 16,367 7,456 3,686 Basic net income per share attributable to REX common shareholders (a) $ 0.50 $ 2.16 $ 1.08 $ 0.54 Diluted net income per share attributable to REX common shareholders (a) $ 0.50 $ 2.16 $ 1.08 $ 0.54 Quarters Ended (In Thousands, Except Per Share Amounts) April 30, July 31, October 31, January 31, 2014 2014 2014 2015 Net sales and revenue $ 155,924 $ 150,231 $ 138,424 $ 127,651 Gross profit 36,636 38,838 36,491 29,974 Net income 24,200 26,718 28,589 24,207 Net income attributable to REX common shareholders 21,742 21,907 23,340 20,348 Basic net income per share attributable to REX common shareholders $ 2.68 $ 2.68 $ 2.86 $ 2.55 Diluted net income per share attributable to REX common shareholders $ 2.67 $ 2.68 $ 2.86 $ 2.55 a) The total of the quarterly net income per share amounts do not equal the annual net income per share amounts due to the impact of varying amounts of shares outstanding during the year.

SUMMARY OF SIGNIFICANT ACCOUN41

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
	Jan. 31, 2016USD ($)shares	Jan. 31, 2015USD ($)	Jan. 31, 2014USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Number of Ethanol Entities Under Ownership Interest	3
Number of Reportable Segments	1
Concentration Risk Number of Customer	4
Concentration Risk, Percentage	75.00%	74.00%	82.00%
Impairment of Real Estate	$ 125,000	$ 68,000	$ 55,000
Depreciation	18,638,000	16,387,000	16,915,000
Interest Paid	0	2,136,000	$ 3,492,000
Deferred Tax Liabilities, Derivatives	300,000
Derivative Settlement on Interest Rate Swap	$ 1,142,000	1,687,000
Employee Stock Ownership Plan (ESOP), Shares in ESOP (in Shares) | shares	550,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 4,000,000	1,100,000
Deferred Tax Expense from Stock Options Exercised	$ 800,000	$ 400,000
Customer Concentration Risk [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Concentration Risk, Percentage	47.00%	76.00%
Minimum [Member] | Building and Building Improvements [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	15
Minimum [Member] | Fixtures And Equipment [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	2
Maximum [Member] | Building and Building Improvements [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	40
Maximum [Member] | Fixtures And Equipment [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	20
Cost of Sales [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]
Maximum Percentage of Equity Ownership Interest Which May be Considered for Equity Method of Accounting	20.00%

SUMMARY OF SIGNIFICANT ACCOUN42

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Schedule of components of inventory - USD ($) $ in Thousands	Jan. 31, 2016	Jan. 31, 2015
Schedule of components of inventory [Abstract]
Ethanol and other finished goods	$ 3,105	$ 3,039
Work in process	2,652	2,609
Grain and other raw materials	11,421	12,414
Total	$ 17,178	$ 18,062

SUMMARY OF SIGNIFICANT ACCOUN43

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Schedule of Property Plant and Equipment - USD ($) $ in Thousands	Jan. 31, 2016	Jan. 31, 2015
Schedule of Property Plant and Equipment [Abstract]
Land and improvements	$ 21,598	$ 20,844
Buildings and improvements	24,543	27,069
Machinery, equipment and fixtures	237,735	231,422
Construction in progress	6,094	1,290
	289,970	280,625
Less: accumulated depreciation	(99,994)	(86,178)
Total	$ 189,976	$ 194,447

INVESTMENTS AND DEPOSITS (Detai

INVESTMENTS AND DEPOSITS (Details) $ in Thousands, gal in Millions	12 Months Ended
	Jan. 31, 2016USD ($)gal	Jan. 31, 2015USD ($)	Jan. 31, 2014USD ($)	Jan. 31, 2009
INVESTMENTS AND DEPOSITS (Details) [Line Items]
Income (Loss) from Equity Method Investments	$ 8,984	$ 32,229	$ 17,175
Equity Method Investments	38,707	80,389
Gain (Loss) on Sale of Investments	10,385
Accounts Receivable, Net, Current	13,666	8,794
Net Cash Provided by (Used in) Investing Activities	32,201	(7,320)	6,832
Retained Earnings, Undistributed Earnings from Equity Method Investees	18,700	41,900
Big River [Member]
INVESTMENTS AND DEPOSITS (Details) [Line Items]
Agreement to Invest During Year	$ 20,000
Equity Method Investment, Ownership Percentage	9.70%
Income (Loss) from Equity Method Investments	$ 6,000	18,200	8,800
Proceeds from Equity Method Investment, Dividends or Distributions	7,500	18,000	1,200
Equity Method Investments	38,707	40,188
Equity Method Investment, Underlying Equity in Net Assets	36,700
Other Restricted Assets	306,300
Proportionate Share of Restricted Net Assets	$ 29,700
Big River [Member] | Burlington [Member]
INVESTMENTS AND DEPOSITS (Details) [Line Items]
Quantity of ethanol shipped (in US Gallons) | gal	106
Big River [Member] | Illinois [Member]
INVESTMENTS AND DEPOSITS (Details) [Line Items]
Quantity of ethanol shipped (in US Gallons) | gal	118
Big River [Member] | Dyersville [Member]
INVESTMENTS AND DEPOSITS (Details) [Line Items]
Equity Method Investment, Ownership Percentage	55.30%			50.50%
Quantity of ethanol shipped (in US Gallons) | gal	123
Big River [Member] | Boyceville [Member]
INVESTMENTS AND DEPOSITS (Details) [Line Items]
Quantity of ethanol shipped (in US Gallons) | gal	58
Big River [Member] | Big River Resources United Energy LLC [Member]
INVESTMENTS AND DEPOSITS (Details) [Line Items]
Equity Method Investment, Ownership Percentage	55.30%
Patriot [Member]
INVESTMENTS AND DEPOSITS (Details) [Line Items]
Equity Method Investment, Ownership Percentage	27.00%
Income (Loss) from Equity Method Investments	$ 2,900	14,000	8,400
Proceeds from Equity Method Investment, Dividends or Distributions	3,600	4,900	$ 4,600
Equity Method Investments	39,000	$ 40,201
Equity Method Initial Investments	$ 17,900
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Gain (Loss) on Disposition of Business	$ 45,500
Business Combination, Consideration Transferred	196,000
Gain (Loss) on Sale of Investments	10,400
Accounts Receivable, Net, Current	4,400
Net Cash Provided by (Used in) Investing Activities	45,500
Non Cash Provided by (Used in) Investing Activities	$ 4,400

INVESTMENTS AND DEPOSITS (Det45

INVESTMENTS AND DEPOSITS (Details) - Schedule of Equity Method Investments - USD ($) $ in Thousands	Jan. 31, 2016	Jan. 31, 2015
Schedule of Equity Method Investments [Line Items]
Total Equity Method Securities, Carrying Amount	$ 38,707	$ 80,389
Big River [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Securities, Ownership percentage	9.70%
Total Equity Method Securities, Carrying Amount	$ 38,707	40,188
Patriot [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Securities, Ownership percentage	27.00%
Total Equity Method Securities, Carrying Amount	$ 39,000	$ 40,201

INVESTMENTS AND DEPOSITS (Det46

INVESTMENTS AND DEPOSITS (Details) - Schedule of Condensed Balance Sheet - USD ($) $ in Thousands	Jan. 31, 2016	Dec. 31, 2015	Jan. 31, 2015	Dec. 31, 2014
Condensed Balance Sheet Statements, Captions [Line Items]
Current assets	$ 179,360		$ 175,745
Total assets	414,685		456,947
Current liabilities	19,635		19,557
Long-term liabilities	$ 39,291		$ 44,426
Big River [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current assets		$ 137,758		$ 180,186
Non current assets		341,907		343,182
Total assets		479,665		523,368
Current liabilities		49,224		57,130
Total liabilities		49,224		57,130
Noncontrolling interests		$ 48,156		46,913
Patriot [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current assets				56,272
Non current assets				158,828
Total assets				215,100
Current liabilities				19,205
Long-term liabilities				49,542
Total liabilities				$ 68,747

INVESTMENTS AND DEPOSITS (Det47

INVESTMENTS AND DEPOSITS (Details) - Schedule of Financial information For Equity Method Investment - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Patriot [Member]
INVESTMENTS AND DEPOSITS (Details) - Schedule of Financial information For Equity Method Investment [Line Items]
Net sales and revenue	$ 115,614	[1]	$ 331,260	$ 377,532
Gross profit	14,424	[1]	59,980	37,411
Income from continuing operations	11,100	[1]	52,875	31,518
Net income	11,100	[1]	52,875	31,518
Big River [Member]
INVESTMENTS AND DEPOSITS (Details) - Schedule of Financial information For Equity Method Investment [Line Items]
Net sales and revenue	863,554		1,184,505	1,292,120
Gross profit	85,451		241,963	124,327
Income from continuing operations	62,193		187,388	90,729
Net income	$ 62,193		$ 187,388	$ 90,729
[1]	For Patriot, results are for the five month period ended May 31, 2015 as the Company's equity interest in Patriot was sold June 1, 2015.

FAIR VALUE (Details)

FAIR VALUE (Details)	12 Months Ended
	Jan. 31, 2015USD ($)
Fair Value Disclosures [Abstract]
Impairment of Long-Lived Assets to be Disposed of	$ 68,000

FAIR VALUE (Details) - Schedule

FAIR VALUE (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis - USD ($) $ in Thousands		Jan. 31, 2016	Jan. 31, 2015
FAIR VALUE (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Investment in cooperative	[1]	$ 333	$ 333
Forward purchase contracts liability (2)	[2]	$ 312
Commodity futures (3)	[3]
Total liabilities		$ 312
Fair Value, Inputs, Level 1 [Member]
FAIR VALUE (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Investment in cooperative	[1]
Forward purchase contracts liability (2)	[2]
Commodity futures (3)	[3]
Fair Value, Inputs, Level 2 [Member]
FAIR VALUE (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Investment in cooperative	[1]
Forward purchase contracts liability (2)	[2]	$ 312
Commodity futures (3)	[3]
Total liabilities		$ 312
Fair Value, Inputs, Level 3 [Member]
FAIR VALUE (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Investment in cooperative	[1]	$ 333	$ 333
Forward purchase contracts liability (2)	[2]
Commodity futures (3)	[3]
[1]	The investment in cooperative is included in "Other assets" on the accompanying Consolidated Balance Sheets.
[2]	The forward purchase contract liability is included in "Accrued expenses and other current liabilities" on the accompanying Consolidated Balance Sheets.
[3]	The commodity futures are included in "Accrued expenses and other current liabilities" on the accompanying Consolidated Balance Sheets.

FAIR VALUE (Details) - Fair Val

FAIR VALUE (Details) - Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Balance	$ 333	$ 333	$ 289
Fair value adjustment	$ 0	$ 44

OTHER ASSETS (Details) - Schedu

OTHER ASSETS (Details) - Schedule of Other Assets - USD ($) $ in Thousands	Jan. 31, 2016	Jan. 31, 2015
Schedule of Other Assets [Abstract]
Real estate taxes refundable	$ 5,091	$ 4,395
Deposits	664	914
Other	887	1,057
Total	$ 6,642	$ 6,366

ACCRUED EXPENSES AND OTHER CU52

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - Schedule of accrued expenses and other current liabilities - USD ($) $ in Thousands	Jan. 31, 2016	Jan. 31, 2015
Schedule of accrued expenses and other current liabilities [Abstract]
Accrued utility charges	$ 2,094	$ 3,085
Accrued payroll and related items	3,760	3,798
Accrued real estate taxes	2,564	2,507
Other	1,005	957
Total	$ 9,423	$ 10,347

NET INCOME PER SHARE FROM CON53

NET INCOME PER SHARE FROM CONTINUING OPERATIONS (Details) - Schedule of Earnings Per Share, Basic and Diluted - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Schedule of Earnings Per Share, Basic and Diluted [Abstract]
Basic net income per share from continuing operations attributable to REX common shareholders (in Dollars)	$ 31,436	$ 86,776	$ 34,007
Basic net income per share from continuing operations attributable to REX common shareholders	7,297	8,109	8,137
Basic net income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 4.31	$ 10.70	$ 4.18
Effect of restricted stock	10	9	43
Diluted net income per share from continuing operations attributable to REX common shareholders (in Dollars)	$ 31,436	$ 86,776	$ 34,007
Diluted net income per share from continuing operations attributable to REX common shareholders	7,307	8,118	8,180
Diluted net income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 4.30	$ 10.69	$ 4.16

LEASES (Details) - Schedule of

LEASES (Details) - Schedule of Future Minimum Rental Payments for Operating Leases $ in Thousands	Jan. 31, 2016USD ($)
Schedule of Future Minimum Rental Payments for Operating Leases [Abstract]
2,017	$ 7,340
2,018	6,575
2,019	5,845
2,020	4,341
2,021	2,778
Thereafter	4,169
	$ 31,048

COMMON STOCK (Details)

COMMON STOCK (Details) - USD ($)	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
COMMON STOCK (Details) [Line Items]
Treasury Stock, Shares, Acquired	1,254,344	283,979	137,015
Treasury Stock, Value, Acquired, Cost Method (in Dollars)	$ 70,208,000	$ 18,238,000	$ 3,486,000
Stock Repurchase Program Number of Additional Shares Authorized to be Repurchased	243,238
Employee Stock Option [Member]
COMMON STOCK (Details) [Line Items]
Treasury Stock, Shares, Acquired	1,555
Treasury Stock, Value, Acquired, Cost Method (in Dollars)	$ 100,000

COMMON STOCK (Details) - Schedu

COMMON STOCK (Details) - Schedule of Stock by Class - shares shares in Thousands	Jan. 31, 2016	Jan. 31, 2015
Schedule of Stock by Class [Abstract]
Authorized shares	45,000	45,000
Issued shares	29,853	29,853
Outstanding shares	6,648	7,900

REVOLVING LINES OF CREDIT (Deta

REVOLVING LINES OF CREDIT (Details) - Revolving Credit Facility [Member] - One Earth Energy [Member]	12 Months Ended
	Jan. 31, 2016USD ($)
REVOLVING LINES OF CREDIT (Details) [Line Items]
Line of Credit, Current	$ 10
Debt Instrument, Maturity Date	Apr. 1, 2016
Line of Credit Facility, Interest Rate Description	LIBOR rate plus 250 basis points

DERIVATIVE FINANCIAL INSTRUME58

DERIVATIVE FINANCIAL INSTRUMENTS (Details) l in Millions	Jan. 31, 2016USD ($)l
Disclosure Text Block Supplement [Abstract]
Quantity of Bushels under Forward Purchase Contract | l	0.7
Debt Instrument, Collateral Amount | $	$ 54,000

DERIVATIVE FINANCIAL INSTRUME59

DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of Fair Values for Derivative Financial Instruments - USD ($) $ in Thousands		Jan. 31, 2016	Jan. 31, 2015
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of Fair Values for Derivative Financial Instruments [Line Items]
Asset Derivatives, Fair Value
Liability Derivatives, Fair Value		$ 312
Commodity Contract [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of Fair Values for Derivative Financial Instruments [Line Items]
Asset Derivatives, Fair Value
Liability Derivatives, Fair Value
Forward Contracts [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of Fair Values for Derivative Financial Instruments [Line Items]
Asset Derivatives, Fair Value	[1]
Liability Derivatives, Fair Value	[1]	$ 312
[1]	Forward purchase contracts are included in accrued expenses and other current liabilities. These contracts are for purchases of approximately 0.7 million bushels of corn.

DERIVATIVE FINANCIAL INSTRUME60

DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of Gains or Losses of Derivative Financial Instruments $ in Thousands	12 Months Ended
	Jan. 31, 2016USD ($)
Schedule of Gains or Losses of Derivative Financial Instruments [Abstract]
Cost of sales	$ (382)

EMPLOYEE BENEFITS (Details)

EMPLOYEE BENEFITS (Details)	12 Months Ended
	Jan. 31, 2016USD ($)shares
EMPLOYEE BENEFITS (Details) [Line Items]
Unrecognized Compensation Cost Related to Nonvested Restricted Stock (in Dollars) | $	$ 136,000
Employee Stock Option [Member]
EMPLOYEE BENEFITS (Details) [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	550,000
Employee Stock Option [Member] | Stock Option Plans 2015 [Member]
EMPLOYEE BENEFITS (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	546,832

EMPLOYEE BENEFITS (Details) - S

EMPLOYEE BENEFITS (Details) - Schedule of Non-Vested Restricted Stock Award Activity - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
EMPLOYEE BENEFITS (Details) - Schedule of Non-Vested Restricted Stock Award Activity [Line Items]
Non-Vested Shares	3,168
Weighted Average Grant Date Fair Value	$ 200
Weighted Average Vesting Term	2 years
Granted [Member]
EMPLOYEE BENEFITS (Details) - Schedule of Non-Vested Restricted Stock Award Activity [Line Items]
Non-Vested Shares	3,168
Weighted Average Grant Date Fair Value	$ 200
Forfeited [Member]
EMPLOYEE BENEFITS (Details) - Schedule of Non-Vested Restricted Stock Award Activity [Line Items]
Non-Vested Shares
Weighted Average Grant Date Fair Value
Vested [Member]
EMPLOYEE BENEFITS (Details) - Schedule of Non-Vested Restricted Stock Award Activity [Line Items]
Non-Vested Shares
Weighted Average Grant Date Fair Value

EMPLOYEE BENEFITS (Details) -63

EMPLOYEE BENEFITS (Details) - Schedule of Share-based Compensation, Stock Options, Activity - $ / shares shares in Thousands	12 Months Ended
	Jan. 31, 2015	Jan. 31, 2014
Schedule of Share-based Compensation, Stock Options, Activity [Abstract]
Outstanding—Beginning of year	84	169
Outstanding—Beginning of year	$ 12.37	$ 12.46
Exercised	(84)	(85)
Exercised	$ 12.37	$ 12.55
Outstanding—End of year		84
Outstanding—End of year		$ 12.37
Exercisable—End of year		84
Exercisable—End of year		$ 12.37

COMMITMENTS (Details)

COMMITMENTS (Details) lb in Millions, l in Millions, gal in Millions, bu in Millions	12 Months Ended
	Jan. 31, 2016USD ($)Tlbgallbu	Jan. 31, 2015USD ($)	Jan. 31, 2014USD ($)
COMMITMENTS (Details) [Line Items]
Quantity of Bushels under Forward Purchase Contract (in US Bushels) | l	0.7
Operating Leases, Future Minimum Payments Due	$ 31,048,000
One Earth Energy And Nu Gen Energy [Member]
COMMITMENTS (Details) [Line Items]
Quantity of Bushels under Forward Purchase Contract (in US Bushels) | bu	14
Supply Commitment Expected Period Of Delivery	They expect to take delivery of the corn through May 2016.
Quantity of Ethanol under Sales Commitment (in US Gallons) | gal	51.7
Quantity of Distillers Grains Under Sales Commitment (in US Tons) | T	63,000
Quantity of Non-food Grade Corn Oil Under Sales Commitments (in Pounds) | lb	10.5
Alliance Grain [Member]
COMMITMENTS (Details) [Line Items]
Percentage of Grain Purchase Under Agreement	100.00%	100.00%	100.00%
Expiration Date of Grain Agreement	Oct. 31, 2016
Maximum Period to Notify Other Party for Grain Agreement Period Extension	180 months
Natural Gas Pipeline [Member] | One Earth Energy [Member]
COMMITMENTS (Details) [Line Items]
Lease Expiration Period	10 years
Operating Leases, Future Minimum Payments Due	$ 4,380,000
Number of installments payable	120
Installment amount	$ 36,500
Operating Leases, Rent Expense, Net	438,000	$ 438,000	$ 438,000
Railcars One [Member] | One Earth Energy And Nu Gen Energy [Member]
COMMITMENTS (Details) [Line Items]
Operating Leases, Rent Expense, Net	$ 7,221,000	7,024,000	6,405,000
Lease Expiration Date	Sep. 30, 2022
Distillers Grains Marketing Services [Member] | One Earth Energy And Nu Gen Energy [Member]
COMMITMENTS (Details) [Line Items]
Marketing Expense	$ 1,169,000	$ 1,190,000	$ 1,478,000

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($)	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013
INCOME TAXES (Details) [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 1,151,000	$ 1,752,000	$ 2,017,000	$ 1,891,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(601,000)	(265,000)	126,000
Income Taxes Paid	20,253,000	30,142,000	3,450,000
Proceeds from Income Tax Refunds	132,000	$ 53,000	$ 38,000
Unrecognized Tax Benefit	987,000
Interest Income (Expense), after Provision for Loan Loss	987,000
State and Local Jurisdiction [Member]
INCOME TAXES (Details) [Line Items]
Operating Loss Carryforwards	$ 14,860,000

INCOME TAXES (Details) - Sched

INCOME TAXES (Details) - Schedule of Components of Income Tax Expense - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Federal:
Current	$ 15,804	$ 23,452	$ 2,974
Deferred	(2,867)	20,717	15,402
	12,937	44,169	18,376
State and Local:
Current	2,651	3,536	2,154
Deferred	(1,480)	1,944	221
	1,171	5,480	2,375
Provision for income taxes	$ 14,108	$ 49,649	$ 20,751

INCOME TAXES (Details) - Sch67

INCOME TAXES (Details) - Schedule of Deferred Tax Assets and Liabilities - USD ($)	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013
Assets:
Accrued liabilities	$ 915,000	$ 664,000
AMT credit carryforward		4,015,000
State net operating loss carryforward	1,147,000	1,343,000
Other items	198,000	624,000
Valuation allowance	(1,151,000)	(1,752,000)	$ (2,017,000)	$ (1,891,000)
Total	1,109,000	4,894,000
Liabilities:
Basis in pass through entities, including depreciation	(37,834,000)	(44,783,000)
Other	(543,000)	(516,000)
Total	(38,377,000)	(45,299,000)
Net deferred tax liability	$ (37,268,000)	$ (40,405,000)

INCOME TAXES (Details) - Sch68

INCOME TAXES (Details) - Schedule of Effective Income Tax Reconciliation	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Schedule of Effective Income Tax Reconciliation [Abstract]
Federal income tax at statutory rate	35.00%	35.00%	35.00%
State and local taxes, net of federal tax benefit	(1.30%)	3.60%	4.50%
Net change in valuation allowance	(1.20%)	(0.20%)	0.20%
Domestic production activities deduction	(1.70%)	(1.10%)	(1.50%)
Uncertain tax positions	1.00%		(0.10%)
Noncontrolling interest	(4.40%)	(4.00%)	(3.40%)
Other		(0.80%)	(0.10%)
Total	27.40%	32.50%	34.60%

INCOME TAXES (Details) - Sch69

INCOME TAXES (Details) - Schedule of Unrecognized Tax Benefits Roll Forward - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Schedule of Unrecognized Tax Benefits Roll Forward [Abstract]
Unrecognized tax benefits, beginning of year	$ 1,658	$ 1,862
Changes for tax positions for prior years	(1,658)	(204)
Changes for tax positions for current year	987
Unrecognized tax benefits, end of year	$ 987	$ 1,658

DISCONTINUED OPERATIONS (Detail

DISCONTINUED OPERATIONS (Details) - Schedule of Disposal Groups Including Discontinued Operations - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2015	Jan. 31, 2014
Schedule of Disposal Groups Including Discontinued Operations [Abstract]
Net sales and revenue	$ 47	$ 1,512
Cost of sales	(321)	732
Income before income taxes	368	538
Provision for income taxes	(134)	(213)
Income from discontinued operations, net of tax	234	325
Gain on disposal before provision for income taxes	513	1,226
Provision for income taxes	(186)	(485)
Gain on disposal of discontinued operations, net of tax	$ 327	$ 741

CONTINGENCIES (Details)

CONTINGENCIES (Details) - USD ($)	Jan. 31, 2016	Jan. 31, 2015
Loss Contingency [Abstract]
Loss Contingency Accrual	$ 0	$ 0

NET SALES AND REVENUE (Details)

NET SALES AND REVENUE (Details) - Schedule of Sales of Consolidated Ethanol Plants - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Revenue from External Customer [Line Items]
Product or Service	$ 436,488	$ 572,230	$ 666,045
Ethanol [Member]
Revenue from External Customer [Line Items]
Product or Service	333,200	452,831	500,203
Dried Distillers Grains [Member]
Revenue from External Customer [Line Items]
Product or Service	81,116	96,328	125,575
Non-Food Grade Corn Oil [Member]
Revenue from External Customer [Line Items]
Product or Service	15,510	16,985	18,788
Modified Distillers Grains [Member]
Revenue from External Customer [Line Items]
Product or Service	5,999	4,814	18,998
Other Product [Member]
Revenue from External Customer [Line Items]
Product or Service	$ 663	$ 1,272	$ 2,481

QUARTERLY UNAUDITED INFORMATI73

QUARTERLY UNAUDITED INFORMATION (Details) - Schedule of Quarterly Financial Information - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Jan. 31, 2016		Oct. 31, 2015		Jul. 31, 2015		Apr. 30, 2015		Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Schedule of Quarterly Financial Information [Abstract]
Net sales and revenue	$ 107,227		$ 110,584		$ 113,480		$ 105,197		$ 127,651	$ 138,424	$ 150,231	$ 155,924	$ 436,488	$ 572,230	$ 666,045
Gross profit	9,158		14,273		18,276		9,127		29,974	36,491	38,838	36,636	50,834	141,939	64,288
Net income	4,827		9,433		18,711		4,439		24,207	28,589	26,718	24,200	37,410	103,714	40,229
Net income attributable to REX common shareholders	$ 3,686		$ 7,456		$ 16,367		$ 3,927		$ 20,348	$ 23,340	$ 21,907	$ 21,742	$ 31,436	$ 87,337	$ 35,073
Basic net income per share attributable to REX common shareholders (a) (in Dollars per share)	$ 0.54	[1]	$ 1.08	[1]	$ 2.16	[1]	$ 0.50	[1]	$ 2.55	$ 2.86	$ 2.68	$ 2.68	$ 4.31	$ 10.77	$ 4.31
Diluted net income per share attributable to REX common shareholders (a) (in Dollars per share)	$ 0.54	[1]	$ 1.08	[1]	$ 2.16	[1]	$ 0.50	[1]	$ 2.55	$ 2.86	$ 2.68	$ 2.67	$ 4.30	$ 10.76	$ 4.29
[1]	The total of the quarterly net income per share amounts do not equal the annual net income per share amounts due to the impact of varying amounts of shares outstanding during the year.

RELATED PARTIES (Details)

RELATED PARTIES (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
One Earth Energy And Nu Gen Energy [Member]
RELATED PARTIES (Details) [Line Items]
Costs and Expenses, Related Party	$ 148.2	$ 164.7

Schedule II - VALUATION AND Q75

Schedule II - VALUATION AND QUALIFYING ACCOUNTS (Details) - VALUATION AND QUALIFYING ACCOUNTS - USD ($)	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
2016:
Balance	$ 1,752,000	$ 2,017,000	$ 1,891,000
Additions Charged to Cost and Expenses	(601,000)	(265,000)	126,000
Deductions Charges for Which Reserves Were Created	601,000	265,000	(126,000)
Balance	$ 1,151,000	$ 1,752,000	$ 2,017,000