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Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2020 | Oct. 31, 2019
Statement of Comprehensive Income [Abstract] |  |  |  |
Net loss attributable to common shareholders | $ (4,149) | $ (2,550) | $ (18,513) | $ (9,071)
Change in cumulative translation adjustment for sale of foreign entity | 0 | 0 | 0 | (331)
Other changes in cumulative translation adjustment | 11 | 115 | (38) | (45)
Comprehensive loss | $ (4,138) | $ (2,435) | $ (18,551) | $ (9,447)

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