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DERIVATIVE FINANCIAL INSTRUMENTS (Details) l in Millions, bu in Millions	12 Months Ended
	Jan. 31, 2020 USD ($) bu	Jan. 31, 2019 USD ($) bu l	Jan. 31, 2018 USD ($)
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Debt Instrument, Collateral Amount | $	$ 1,113,000
Derivative, Gain on Derivative | $	$ 2,201,000	$ 2,698,000	$ 1,317,000
Corn [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Forward Purchase Contracts, Quantity | bu	1.6	1.3
Short/Sell [Member] | Corn [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Commodity Futures, Quantity	3.7	2.0
Long/Buy [Member] | Corn [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Commodity Futures, Quantity | bu	2.2

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