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SEGMENT REPORTING (Details) - Schedule Of Segment Assets - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
Segment Reporting Information [Line Items] |  |  |
Assets: | $ 478,864 | $ 454,024 | $ 414,685
Additions to other long lived assets: | 796 | 832 | 696
Additions to property and equipment: | 24,017 | 14,208 | 15,495
Ethanol [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets: | 384,997 | 371,464 | 348,779
Additions to other long lived assets: | 796 | 832 | 696
Additions to property and equipment: | 24,017 | 14,208 | 15,495
Refined Coal [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets: | 12,165 |  |
Corporate and Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets: | $ 81,702 | $ 82,560 | $ 65,906

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- Definition Amount of significant additions in the period in other assets (current, noncurrent, or unclassified). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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