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DERIVATIVE FINANCIAL INSTRUMENTS (Details) gal in Millions, bu in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2018 USD ($) bu	Oct. 31, 2017 USD ($)	Oct. 31, 2018 USD ($) bu	Oct. 31, 2017 USD ($)	Jan. 31, 2018 bu gal
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Debt Instrument, Collateral Amount	$ 434,000		$ 434,000
Derivative, Gain on Derivative	2,432,000	$ 75,000	2,273,000	$ 1,052,000
Derivative, Loss on Derivative	$ 64,000		$ 64,000
Corn [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Forward Purchase Contracts, Quantity (in US Bushels) \| bu	2.6		2.6		11.7
Corn [Member] \| Short/Sell [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Commodity Futures, Quantity \| bu	2.7		2.7		2.5
Ethanol [Member] \| Short/Sell [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Commodity Futures, Quantity \| gal					2.8
Ethanol [Member] \| Long/Buy [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Commodity Futures, Quantity \| gal					2.8