Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Restricted Stock Units (RSUs) [Member] Common Stock [Member]	Restricted Stock Units (RSUs) [Member] Additional Paid-in Capital [Member]	Restricted Stock Units (RSUs) [Member] Retained Earnings [Member]	Restricted Stock Units (RSUs) [Member] Noncontrolling Interest [Member]	Restricted Stock Units (RSUs) [Member] AOCI Attributable to Parent [Member]	Restricted Stock Units (RSUs) [Member]	Restricted Stock [Member] Common Stock [Member]	Restricted Stock [Member] Additional Paid-in Capital [Member]	Restricted Stock [Member] Retained Earnings [Member]	Restricted Stock [Member] Noncontrolling Interest [Member]	Restricted Stock [Member] AOCI Attributable to Parent [Member]	Restricted Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2020													19,565,921
Balance at Dec. 31, 2020													$ 284,261	$ 4,932	$ 138,094	$ 72	$ 1,129	$ 428,488
Net income													0	0	25,836	0	0	25,836
Stock-based compensation													0	602	0	0	0	602
Restricted stock unit vested (in shares)							60,000
Restricted stock unit vested							$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Cash dividend													$ 0	0	(4,887)	0	0	$ (4,887)
Stock options exercised, net of expense recognized (in shares)													76,265					76,265
Stock options exercised, net of expense recognized													$ 930	(124)	0	0	0	$ 806
Repurchase of common stock (in shares)													(352,384)
Repurchase of common stock													$ (4,938)	(135)	(2,486)	0	0	(7,559)
Other comprehensive income (loss), net of taxes													$ 0	0	0	0	(962)	(962)
Balance (in shares) at Jun. 30, 2021													19,349,802
Balance at Jun. 30, 2021													$ 280,253	5,275	156,558	72	167	442,325
Balance (in shares) at Mar. 31, 2021													19,528,249
Balance at Mar. 31, 2021													$ 282,845	5,095	147,806	72	(150)	435,668
Net income													0	0	13,380	0	0	13,380
Stock-based compensation													0	315	0	0	0	315
Cash dividend													$ 0	0	(2,540)	0	0	$ (2,540)
Stock options exercised, net of expense recognized (in shares)													43,976					43,976
Stock options exercised, net of expense recognized													$ 466	0	0	0	0	$ 466
Repurchase of common stock (in shares)													(222,423)
Repurchase of common stock													$ (3,058)	(135)	(2,088)	0	0	(5,281)
Other comprehensive income (loss), net of taxes													$ 0	0	0	0	317	317
Balance (in shares) at Jun. 30, 2021													19,349,802
Balance at Jun. 30, 2021													$ 280,253	5,275	156,558	72	167	$ 442,325
Balance (in shares) at Dec. 31, 2021													19,455,544					19,455,544
Balance at Dec. 31, 2021													$ 282,335	4,603	181,329	72	(1,656)	$ 466,683
Net income													0	0	30,094	0	0	30,094
Stock-based compensation													$ 0	406	0	0	0	406
Restricted stock cancelled (in shares)													(40,000)
Restricted stock cancelled													$ 0	0	0	0	0	0
Restricted stock unit vested (in shares)	1,000						0
Restricted stock unit vested	$ 27	$ (27)	$ 0	$ 0	$ 0	$ 0	$ 355	$ (355)	$ 0	$ 0	$ 0	$ 0
Cash dividend													$ 0	0	(5,411)	0	0	$ (5,411)
Stock options exercised, net of expense recognized (in shares)													224,376					224,376
Stock options exercised, net of expense recognized													$ 3,289	(434)	0	0	0	$ 2,855
Repurchase of common stock (in shares)													(759,091)
Repurchase of common stock													$ (10,910)	0	(5,919)			(16,829)
Other comprehensive income (loss), net of taxes													$ 0	0	0	0	(14,091)	$ (14,091)
Balance (in shares) at Jun. 30, 2022													18,881,829					18,881,829
Balance at Jun. 30, 2022													$ 275,096	4,193	200,093	72	(15,747)	$ 463,707
Balance (in shares) at Mar. 31, 2022													19,247,970
Balance at Mar. 31, 2022													$ 279,836	4,392	190,849	72	(10,324)	464,825
Net income													0	0	15,477	0	0	15,477
Stock-based compensation													$ 0	149	0	0	0	149
Restricted stock cancelled (in shares)													(40,000)
Restricted stock cancelled													$ 0	0	0	0	0	0
Restricted stock unit vested (in shares)	1,000
Restricted stock unit vested	$ 27	$ (27)	$ 0	$ 0	$ 0	$ 0
Cash dividend													$ 0	0	(2,687)	0	0	$ (2,687)
Stock options exercised, net of expense recognized (in shares)													198,613					198,613
Stock options exercised, net of expense recognized													$ 2,781	(321)	0	0	0	$ 2,460
Repurchase of common stock (in shares)													(525,754)
Repurchase of common stock													$ (7,548)	0	(3,546)			(11,094)
Other comprehensive income (loss), net of taxes													$ 0	0	0	0	(5,423)	$ (5,423)
Balance (in shares) at Jun. 30, 2022													18,881,829					18,881,829
Balance at Jun. 30, 2022													$ 275,096	$ 4,193	$ 200,093	$ 72	$ (15,747)	$ 463,707