NET SALES AND REVENUE (Details) - Schedule of Sales of Consolidated Ethanol Plants - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Revenue from External Customer [Line Items]
Product or Service	$ 108,744	$ 115,707	$ 221,887	$ 215,929
Ethanol [Member]
Revenue from External Customer [Line Items]
Product or Service	88,785	90,933	180,257	168,564
Dried Distillers Grains [Member]
Revenue from External Customer [Line Items]
Product or Service	13,472	18,946	28,622	36,000
Non-Food Grade Corn Oil [Member]
Revenue from External Customer [Line Items]
Product or Service	4,726	4,738	9,318	8,584
Modified Distillers Grains [Member]
Revenue from External Customer [Line Items]
Product or Service	1,748	983	3,667	2,547
Other Product [Member]
Revenue from External Customer [Line Items]
Product or Service	$ 13	$ 107	$ 23	$ 234