DERIVATIVE FINANCIAL INSTRUMENTS (Details) l in Millions, bu in Millions	12 Months Ended
	Jan. 31, 2019 USD ($) bu	Jan. 31, 2018 USD ($) bu l	Jan. 31, 2017 USD ($)
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Debt Instrument, Collateral Amount | $	$ 281,000
Derivative, Gain on Derivative | $	$ 2,698,000	$ 1,317,000	$ 2,131,000
Corn [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Forward Purchase Contracts, Quantity (in US Bushels) | bu	1.3	11.7
Corn [Member] | Short/Sell [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Commodity Futures, Quantity	2.0	2.5
Ethanol [Member] | Short/Sell [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Commodity Futures, Quantity | l		2.8
Ethanol [Member] | Long/Buy [Member]
DERIVATIVE FINANCIAL INSTRUMENTS (Details) [Line Items]
Commodity Futures, Quantity | l		2.8