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Discontinued Operations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2017 | Jan. 31, 2016
Discontinued operations [Line Items] |  |
Assets of discontinued operations | $ 25 | $ 14,241
Liabilities of discontinued operations | 199 | 12,836
Discontinued operation, net sales | 10,467 | 64,975
Gain on disposal of discontinued operations | 209 | 8,099
Impairment expense on discontinued operations | 0 | (6,480)
Income (loss) from discontinued operation | 1,522 | (7,569)
Income (loss) from discontinued operation, before income tax | 1,731 | (5,950)
Discontinued operation, income tax expense | 1,043 | 94
Income (loss) from discontinued operations, net of tax | $ 688 | $ (6,044)

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