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, 2025	Jan. 31, 2024
Accounting Policies [Abstract]
Net income	$ 21,644	$ 21,910
Weighted-average shares — basic	16,365	16,295
Dilutive effect of common stock equivalents from equity incentive plans	7	93
Weighted-average shares — diluted	16,372	16,388
Basic (in dollars per share)	$ 1.32	$ 1.34
Diluted (in dollars per share)	$ 1.32	$ 1.34