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INVESTMENTS (Tables) | 12 Months Ended
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Jan. 31, 2019
Investments Schedule [Abstract] |
Equity Method Investments [Table Text Block] | The following table summarizes the investment (amounts in thousands):
|  | January 31, 2019 |  |  | January 31, 2018 |
Carrying amount |  | $ | 32,075 |  |  | $ | 34,549 |
Ownership percentage |  |  | 10.3 | % |  |  | 10.3 | %
Condensed Balance Sheet [Table Text Block] | Summarized financial information for the Company’s equity method investee as of and for its fiscal year end is presented in the following tables (amounts in thousands):
Big River |  |  |  |  |  |
|  | December 31, 2018 |  |  | December 31, 2017 |
Current assets |  | $ | 117,796 |  |  | $ | 149,436 |
Non current assets |  |  | 241,382 |  |  |  | 261,443 |
Total assets |  | $ | 359,178 |  |  | $ | 410,879 |
Current liabilities |  | $ | 50,172 |  |  | $ | 49,130 |
Long-term liabilities |  |  | 701 |  |  |  | 10,599 |
Total liabilities |  | $ | 50,873 |  |  | $ | 59,729 |
Noncontrolling interests |  | $ | 34,149 |  |  | $ | 38,412 |
Schedule of Financial Information for Equity Method Investments [Table Text Block] | The following table summarizes the Company’s held-to-maturity security at January 31, 2019 (amounts in thousands):
|  | Years Ended December 31, |
Big River |  | 2018 |  |  | 2017 |  |  | 2016 |
Net sales and revenue |  | $ | 802,523 |  |  | $ | 817,112 |  |  | $ | 851,434 |
Gross profit |  | $ | 33,782 |  |  | $ | 60,259 |  |  | $ | 88,841 |
Income from continuing operations |  | $ | 14,893 |  |  | $ | 32,243 |  |  | $ | 63,292 |
Net income |  | $ | 14,893 |  |  | $ | 32,243 |  |  | $ | 63,292 |
Debt Securities, Held-to-maturity [Table Text Block] | The following table summarizes the Company’s held-to-maturity security at January 31, 2019 (amounts in thousands):
|  | Amortized Cost |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |
United States Treasury Bill |  | $ | 14,975 |  |  | $ | 2 |  |  | $ | 14,973 |

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