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Discontinued Operations Discontinued operations balance sheet (Details) - USD ($) $ in Thousands | Jan. 31, 2018 | Jan. 31, 2017
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Discontinued operations [Line Items] |  |
Trade accounts receivable, net discontinued operations | $ 0 | $ 25
Total assets from discontinued operations | 0 | 25
Trade accounts payable, accrued expenses and other | 137 | 199
Total liabilities from discontinued operations | $ 137 | $ 199

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