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, 2019	$ 2,337	$ 144,994	$ 247,616	$ (33)	$ (346)	$ (196)	$ 394,372
Balances (in shares) at Jan. 31, 2019	15,573,869
Net income (loss)			(42,689)			1,977	(40,712)
Foreign currency translation gain (loss)					(770)		(770)
Stock compensation expense		2,131					2,131
Stock option exercises	$ 9	1,621					$ 1,630
Stock option exercises (in shares)	61,100						61,000
Cash dividends			(15,621)				$ (15,621)
Balances at Jan. 31, 2020	$ 2,346	148,746	189,306	(33)	(1,116)	1,781	341,030
Balances (in shares) at Jan. 31, 2020	15,634,969
Net income (loss)			23,851			(40)	23,811
Foreign currency translation gain (loss)					35		35
Stock compensation expense		2,938					2,938
Stock option exercises	$ 10	1,631					$ 1,641
Stock option exercises (in shares)	68,000						68,000
Cash dividends			(47,047)				$ (47,047)
Balances at Jan. 31, 2021	$ 2,356	153,315	166,110	(33)	(1,081)	1,741	322,408
Balances (in shares) at Jan. 31, 2021	15,702,969
Retained earnings							166,110
Net income (loss)			38,244			(2,538)	35,706
Foreign currency translation gain (loss)					(1,370)		(1,370)
Stock compensation expense		3,459					3,459
Stock option exercises	$ 12	1,416					$ 1,428
Stock option exercises (in shares)	82,471						42,000
Common stock repurchases				(20,372)			$ (20,372)
Common stock repurchases (in shares)	(527,752)						(527,752)
Cash dividends			(15,664)				$ (15,664)
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
Retained earnings							$ 188,690