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NET INCOME PER SHARE FROM CONTINUING OPERATIONS (Tables) | 12 Months Ended
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Jan. 31, 2018
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following table reconciles the basic and diluted net income per share computations for fiscal year 2015 (amounts in thousands, except per-share amounts):
|  | 2015 |
|  | Income |  |  | Shares |  |  | Per Share |
Basic net income per share attributable to REX common shareholders |  | $ | 31,436 |  |  |  | 7,297 |  |  | $ | 4.31 |
Effect of restricted stock |  |  |  |  |  |  | 10 |  |  |  |  |
Diluted net income per share attributable to REX common shareholders |  | $ | 31,436 |  |  |  | 7,307 |  |  | $ | 4.30 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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