Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Numerator
Net loss	$ (1,751)	$ (2,441)	$ (18,801)
Denominator
Weighted-average common shares	23,473,849	22,361,312	21,051,039
Basic and diluted net loss per share	$ (0.07)	$ (0.11)	$ (0.89)