Accounting Policies (Details) - Schedule of components of inventory - USD ($) $ in Thousands	Apr. 30, 2016	Jan. 31, 2016
Schedule of components of inventory [Abstract]
Ethanol and other finished goods	$ 4,945	$ 3,105
Work in process	2,711	2,652
Grain and other raw materials	18,076	11,421
Total	$ 25,732	$ 17,178