CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Total
Balance at Dec. 31, 2020	$ 120	$ 60,692	$ 78,515	$ (54,626)	$ 84,701
Balance (in shares) at Dec. 31, 2020	12,038
Increase (Decrease) in Stockholders' Equity
Stock-based compensation		168			168
Restricted stock award grant	$ 2	(2)
Restricted stock award grant (in shares)	193
Forfeited restricted stock		390		(390)
Forfeited restricted stock (in shares)	(4)
Net share settlement related to vested equity awards		407		(412)	(5)
Net income			3,597		3,597
Balance at Mar. 31, 2021	$ 122	61,655	82,112	(55,428)	88,461
Balance (in shares) at Mar. 31, 2021	12,227
Balance at Dec. 31, 2021	$ 123	63,752	103,283	(55,733)	111,425
Balance (in shares) at Dec. 31, 2021	12,263
Increase (Decrease) in Stockholders' Equity
Stock-based compensation		748			748
Restricted stock award grant	$ 2	(2)
Restricted stock award grant (in shares)	199
Forfeited restricted stock		1,416		(1,416)
Net share settlement related to vested equity awards		(592)		(488)	(1,080)
Net share settlement related to vested equity awards (in shares)	(7)
Net income			13,111		13,111
Balance at Mar. 31, 2022	$ 125	$ 65,322	$ 116,394	$ (57,637)	$ 124,204
Balance (in shares) at Mar. 31, 2022	12,455