Summary of Business and Significant Accounting Policies (Computation of Basic and Diluted Loss Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Accounting Policies [Abstract]
Net loss	$ (15,136)	$ (2,232)
Weighted-average shares — basic	15,954	15,759
Dilutive effect of common stock equivalents from equity incentive plans	0	0
Weighted-average shares — diluted	15,954	15,759
Basic	$ (0.95)	$ (0.14)
Diluted	$ (0.95)	$ (0.14)
Shares of common stock equivalents excluded from computation of diluted net income per share (in shares)	96	52