CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance (shares) at Dec. 31, 2018		15,860,306
Beginning balance at Dec. 31, 2018	$ 129,787	$ 91,209	$ 6,249	$ 32,877	$ (548)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
NET INCOME	16,757			16,757
Other comprehensive (loss) income, net of tax	736				736
Stock issued under stock-based compensation plans (shares)		425,489
Stock issued under stock-based compensation plans	563	$ 563
Stock-based compensation, net	1,275		1,275
Repurchase of common stock (shares)		(582,519)
Repurchase of common stock	(5,391)	$ (5,391)
Cash dividends declared	(3,151)			(3,151)
Ending balance (shares) at Dec. 31, 2019		15,703,276
Ending balance at Dec. 31, 2019	140,576	$ 86,381	7,524	46,483	188
Increase (Decrease) in Stockholders' Equity [Roll Forward]
NET INCOME	13,127			13,127
Other comprehensive (loss) income, net of tax	652				652
Stock issued under stock-based compensation plans (shares)		298,591
Stock issued under stock-based compensation plans	380	$ 380
Stock-based compensation, net	997		997
Repurchase of common stock (shares)		(985,167)
Repurchase of common stock	(8,104)	$ (8,104)
Cash dividends declared	(4,262)			(4,262)
Ending balance (shares) at Dec. 31, 2020		15,016,700
Ending balance at Dec. 31, 2020	143,366	$ 78,657	8,521	55,348	840
Increase (Decrease) in Stockholders' Equity [Roll Forward]
NET INCOME	28,840			28,840
Other comprehensive (loss) income, net of tax	(2,037)				(2,037)
Stock issued under stock-based compensation plans (shares)		124,938
Stock issued under stock-based compensation plans	89	$ 89
Stock-based compensation, net	124		124
Repurchase of common stock (shares)		(3,830)
Repurchase of common stock	(28)	$ (28)
Cash dividends declared	(5,132)			(5,132)
Ending balance (shares) at Dec. 31, 2021		15,137,808
Ending balance at Dec. 31, 2021	$ 165,222	$ 78,718	$ 8,645	$ 79,056	$ (1,197)