CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Non-controlling Interests	Total
Balances at Jan. 31, 2022	$ 2,368	$ 158,190	$ 188,690	$ (20,405)	$ (2,451)	$ (797)	$ 325,595
Balances (in shares) at Jan. 31, 2022	15,257,688
Net income			7,485				7,485
Foreign currency translation gain (loss)					(1,264)		(1,264)
Stock compensation expense		920					920
Stock option exercises and other share-based award settlements	$ 6	60					66
Stock option exercises and other share-based award settlements (in shares)	39,099
Common stock repurchases				(27,077)			$ (27,077)
Common stock repurchases (in shares)	(710,879)						(710,879)
Cash dividends			(3,712)				$ (3,712)
Balances at Apr. 30, 2022	$ 2,374	159,170	192,463	(47,482)	(3,715)	$ (797)	302,013
Balances (in shares) at Apr. 30, 2022	14,585,908
Balances at Jan. 31, 2023	$ 2,374	162,208	207,832	(88,641)	(2,876)		280,897
Balances (in shares) at Jan. 31, 2023	13,441,590
Net income			2,109				2,109
Foreign currency translation gain (loss)					440		440
Net unrealized losses on available-for-sale securities					(37)		(37)
Stock compensation expense		1,034					1,034
Stock option exercises and other share-based award settlements		(1,895)		2,439			$ 544
Stock option exercises and other share-based award settlements (in shares)	65,470						30,000
Common stock repurchases				(3,681)			$ (3,681)
Common stock repurchases (in shares)	(92,656)						(92,656)
Cash dividends			(3,357)				$ (3,357)
Balances at Apr. 30, 2023	$ 2,374	$ 161,347	$ 206,584	$ (89,883)	$ (2,473)		$ 277,949
Balances (in shares) at Apr. 30, 2023	13,414,404