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, 2020	$ 120	60,692	78,515	(54,626)	84,701
Balance (in shares) at Dec. 31, 2020	12,038
Increase (Decrease) in Stockholders' Equity
Net income					7,790
Balance at Jun. 30, 2021	$ 123	62,268	86,305	(55,468)	93,228
Balance (in shares) at Jun. 30, 2021	12,253
Balance at Mar. 31, 2021	$ 122	61,655	82,112	(55,428)	88,461
Balance (in shares) at Mar. 31, 2021	12,227
Increase (Decrease) in Stockholders' Equity
Stock-based compensation		577			577
Restricted stock award grant	$ 1				1
Restricted stock award grant (in shares)	26
Net share settlement related to vested equity awards		36		(40)	(4)
Net income			4,193		4,193
Balance at Jun. 30, 2021	$ 123	62,268	86,305	(55,468)	93,228
Balance (in shares) at Jun. 30, 2021	12,253
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
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
Net income					16,310
Balance at Jun. 30, 2022	$ 125	66,324	119,593	(57,656)	128,386
Balance (in shares) at Jun. 30, 2022	12,481
Balance at Mar. 31, 2022	$ 125	65,322	116,394	(57,637)	124,204
Balance (in shares) at Mar. 31, 2022	12,455
Increase (Decrease) in Stockholders' Equity
Stock-based compensation		1,011			1,011
Restricted stock award grant (in shares)	27
Net share settlement related to vested equity awards		(9)		(19)	(28)
Net share settlement related to vested equity awards (in shares)	(1)
Net income			3,199		3,199
Balance at Jun. 30, 2022	$ 125	$ 66,324	$ 119,593	$ (57,656)	$ 128,386
Balance (in shares) at Jun. 30, 2022	12,481