Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss attributable to common shareholders	$ (21,548)	$ (21,974)	$ (33,639)
Change in cumulative translation adjustment for sale of foreign entities	5,355	0	0
Other changes in cumulative translation adjustment	(545)	1,740	1,507
Comprehensive loss	$ (16,738)	$ (20,234)	$ (32,132)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.

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