COMMITMENTS AND CONTINGENCIES (Details) lb in Millions, gal in Millions, bu in Millions	6 Months Ended
	Jul. 31, 2017 T lb bu gal	Jan. 31, 2017 bu
COMMITMENTS AND CONTINGENCIES (Details) [Line Items]
Quantity of Bushels under Forward Purchase Contract	10.3	5.3
One Earth Energy And Nu Gen Energy [Member]
COMMITMENTS AND CONTINGENCIES (Details) [Line Items]
Quantity of Bushels under Forward Purchase Contract	11.4
Quantity of Ethanol under Sales Commitment | gal	67.8
Quantity of Distillers Grains Under Sales Commitment | T	79,000
Quantity of Non-food Grade Corn Oil Under Sales Commitments | lb	11.7
Supply Commitment Expected Period Of Delivery	They expect to deliver the ethanol, distillers grains and non-food grade corn oil through December2017.