COMMITMENTS AND CONTINGENCIES (Details) lb in Millions, gal in Millions, bu in Millions, $ in Millions	9 Months Ended
	Oct. 31, 2017 USD ($) T lb bu gal	Jan. 31, 2017 bu
COMMITMENTS AND CONTINGENCIES (Details) [Line Items]
Quantity of Bushels under Forward Purchase Contract	4.7	5.3
One Earth Energy And Nu Gen Energy [Member]
COMMITMENTS AND CONTINGENCIES (Details) [Line Items]
Quantity of Bushels under Forward Purchase Contract	9.1
Quantity of Ethanol under Sales Commitment | gal	29.8
Quantity of Distillers Grains Under Sales Commitment | T	108,000
Quantity of Non-food Grade Corn Oil Under Sales Commitments | lb	16.7
Supply Commitment Expected Period Of Delivery	They expect to deliver the ethanol, distillers grains and non-food grade corn oil through December2017.
Refined Coal [Member]
COMMITMENTS AND CONTINGENCIES (Details) [Line Items]
Operating Leases, Rent Expense, Net | $	$ 2.4