Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
Statement of Comprehensive Income [Abstract]
Net loss attributable to common stockholders	$ (4,568)	$ (7,201)
Changes in cumulative translation adjustment	57	(131)
Comprehensive loss	$ (4,511)	$ (7,332)