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, 2024	Jan. 31, 2023
Accounting Policies [Abstract]
Net income	$ 21,910	$ 16,547
Weighted-average shares — basic	16,295	16,142
Dilutive effect of common stock equivalents from equity incentive plans	93	50
Weighted-average shares — diluted	16,388	16,192
Basic	$ 1.34	$ 1.03
Diluted	$ 1.34	$ 1.02