Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Common Class A [Member]	Common Class B [Member]	Total
Balance (in shares) at Jan. 31, 2020	17,109	3,537	(216)
Balance at Jan. 31, 2020	$ 17	$ 4	$ (3,226)	$ 197,824	$ (70,209)	$ (8,345)			$ 116,065
Net loss	0	0	0	0	(350)	0	$ (301)	$ (49)	(350)
Foreign currency translation adjustments	0	0	0	0	0	(1,048)			(1,048)
Stock award exercises	0	0	153	(2,576)	0	0			(2,423)
Stock compensation expense	0	0	0	6,356	0	0			6,356
Dividends declared	$ 0	$ 0	$ 0	0	(2,879)	0			(2,879)
Restricted stock (in shares)	183	0	0
Restricted stock	$ 0	$ 0	$ 0	(3,519)	0	0			(3,519)
Balance (in shares) at Jul. 31, 2020	17,365	3,537	(207)
Balance at Jul. 31, 2020	$ 17	$ 4	$ (3,073)	198,085	(73,438)	(9,393)			112,202
Balance (in shares) at Jan. 31, 2021	17,375	3,537	(207)
Balance at Jan. 31, 2021	$ 17	$ 4	$ (3,073)	205,630	(64,924)	(8,188)			129,466
Net loss	0	0	0	0	(4,490)		$ (3,880)	$ (610)	(4,490)
Foreign currency translation adjustments	0	0	0	0	0	(621)			(621)
Stock award exercises	0	0	239	(5,305)	0				(5,066)
Stock compensation expense	0	0	0	8,382	0	0			8,382
Dividends declared	$ 0	$ 0	$ 0	0	(2,923)	0			(2,923)
Restricted stock (in shares)	209	0	0
Restricted stock	$ 0	$ 0	$ 0	(8,246)	0	0			(8,246)
Balance (in shares) at Jul. 31, 2021	17,663	3,537	(193)
Balance at Jul. 31, 2021	$ 17	$ 4	$ (2,834)	$ 200,461	$ (72,337)	$ (8,809)			$ 116,502