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Accounting Policies (Tables) | 6 Months Ended
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Jul. 31, 2013
Accounting Policies [Abstract] |
Schedule of Inventory, Current [Table Text Block] | The components of inventory at July 31, 2013 and January 31, 2013 are as follows (amounts in thousands):
|  | July 31, 2013 |  |  | January 31, 2013
Ethanol and other finished goods |  | $ | 6,982 |  |  | $ | 7,306
Work in process |  |  | 4,483 |  |  |  | 4,414
Grain and other raw materials |  |  | 17,907 |  |  |  | 13,199
Total |  | $ | 29,372 |  |  | $ | 24,919

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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