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NET SALES AND REVENUE (Tables) | 12 Months Ended
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Jan. 31, 2017
Net Sales And Revenue [Abstract] |
Revenue from External Customers by Products and Services [Table Text Block] | The following table summarizes sales for each product and service group for the periods presented (amounts in thousands):
|  | Fiscal Year |
Product or Service Category |  | 2016 |  |  | 2015 |  |  | 2014 |
Ethanol |  | $ | 358,349 |  |  | $ | 333,200 |  |  | $ | 452,831 |
Dried distillers grains |  |  | 71,204 |  |  |  | 81,116 |  |  |  | 96,328 |
Non-food grade corn oil |  |  | 18,518 |  |  |  | 15,510 |  |  |  | 16,985 |
Modified distillers grains |  |  | 5,326 |  |  |  | 5,999 |  |  |  | 4,814 |
Other |  |  | 402 |  |  |  | 663 |  |  |  | 1,272 |
Total |  | $ | 453,799 |  |  | $ | 436,488 |  |  | $ | 572,230 |

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- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599 + Details
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