Commitments and Contingencies (Details) - One Earth Energy And Nu Gen Energy [Member] lb in Millions, gal in Millions, bu in Millions	9 Months Ended
	Oct. 31, 2015 T lb bu gal
Commitments and Contingencies (Details) [Line Items]
Quantity of Bushels under Forward Purchase Contract | bu	5.3
Quantity of Ethanol under Sales Commitment	55.5
Quantity of Distillers Grains Under Sales Commitment | T	55,000
Quantity of Non-food Grade Corn Oil Under Sales Commitments | lb	6.4
Supply Commitment Expected Period Of Delivery	They expect to deliver the ethanol, distillers grains and non-food grade corn oil through June 2016.