Accounting Policies (Details) - Schedule of components of inventory - USD ($) $ in Thousands	Jul. 31, 2015	Jan. 31, 2015
Schedule of components of inventory [Abstract]
Ethanol and other finished goods	$ 4,268	$ 3,039
Work in process	2,609	2,609
Grain and other raw materials	16,373	12,414
Total	$ 23,250	$ 18,062