XML 39 R37.htm IDEA: XBRL DOCUMENT v2.4.0.8
Accounting Policies (Details) - Schedule of components of inventory (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2013
Jan. 31, 2013
Schedule of components of inventory [Abstract]    
Ethanol and other finished goods $ 4,453 $ 7,306
Work in process 3,360 4,414
Grain and other raw materials 8,493 13,199
Total $ 16,306 $ 24,919