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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Schedule of components of inventory (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Jan. 31, 2014
Schedule of components of inventory [Abstract]    
Ethanol and other finished goods $ 3,039us-gaap_InventoryFinishedGoodsNetOfReserves $ 3,517us-gaap_InventoryFinishedGoodsNetOfReserves
Work in process 2,609us-gaap_InventoryWorkInProcessNetOfReserves 3,017us-gaap_InventoryWorkInProcessNetOfReserves
Grain and other raw materials 12,414us-gaap_InventoryRawMaterialsNetOfReserves 12,836us-gaap_InventoryRawMaterialsNetOfReserves
Total $ 18,062us-gaap_InventoryNet $ 19,370us-gaap_InventoryNet