DERIVATIVE FINANCIAL INSTRUMENTS (Details) bu in Millions	3 Months Ended
	Apr. 30, 2017 USD ($) bu	Apr. 30, 2016 USD ($)	Jan. 31, 2017 bu
Disclosure Text Block Supplement [Abstract]
Quantity Of Bushels Under Commodity Futures | bu	0.9		0.7
Quantity of Bushels under Forward Purchase Contract | bu	10.8		5.3
Debt Instrument, Collateral Amount (in Dollars) | $	$ 130,000
Derivative, Gain on Derivative (in Dollars) | $	$ 124,000	$ 488,000