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)