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UNAUDITED QUARTERLY RESULTS OF OPERATIONS (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2017 | Oct. 31, 2016 | Jul. 31, 2016 | Apr. 30, 2016 | Jan. 31, 2016 | Oct. 31, 2015 | Jul. 31, 2015 | Apr. 30, 2015 | Jan. 31, 2017 | Jan. 31, 2016
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales from continuing operations | $ 20,302 | $ 23,243 | $ 22,269 | $ 20,369 | $ 20,473 | $ 24,888 | $ 29,465 | $ 24,819 | $ 86,183 | $ 99,646
Gross profit from continuing operations | 7,752 | 8,519 | 8,590 | 6,776 | 6,010 | 9,248 | 11,795 | 9,279 | 31,637 | 36,333
Earnings (loss) from continuing operations | 1,989 | 2,248 | 2,631 | (21) | (300) | 3,192 | 5,700 | 3,220 | 6,847 | 11,812
Net income (loss) from continuing operations | $ 946 | $ 1,513 | $ 1,431 | $ 3 | $ (78) | $ 2,120 | $ 3,588 | $ 2,160 | $ 3,893 | $ 7,790
Basic net earnings (loss) per share - continuing operations (in dollars per share) | $ 0.13 | $ 0.21 | $ 0.20 | $ 0.00 | $ (0.01) | $ 0.29 | $ 0.50 | $ 0.31 | $ 0.54 | $ 0.54
Diluted net earnings (loss) per share - continuing operations (in dollars per share) | $ 0.13 | $ 0.21 | $ 0.20 | $ 0.00 | $ (0.01) | $ 0.29 | $ 0.50 | $ 0.30 | $ 0.53 | $ 0.53

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