Agreement to invest during year.

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Equity method initial investments.

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Non cash provided by (used in) investing activities

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Proportionate share of restricted net assets as of the reporting date.

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Quantity of ethanol shipped.

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the entity's ownership percentage in the investee multiplied by the investee's total equity.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Total assets that cannot be used for operating purposes because of contract or regulatory requirements that are in effect for a period that extends beyond one year.

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Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50% or less owned persons accounted for by the equity method (equity method investees).

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INVESTMENTS AND DEPOSITS (Details) $ in Thousands, gal in Millions	12 Months Ended
	Jan. 31, 2016 USD ($) gal	Jan. 31, 2015 USD ($)	Jan. 31, 2014 USD ($)	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