Consolidated Statements of Stockholders' Equity (Unaudited) 2 - USD ($) $ in Thousands	Common Stock [Member] Restricted Stock Units (RSUs) [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Restricted Stock Units (RSUs) [Member]	Total
Balance (in shares) at Dec. 31, 2022		23,655,716				1,568,595
Balance at Dec. 31, 2022		$ 237	$ 189,268	$ 97,773	$ (6,031)	$ (13,046)		$ 268,201
Net income				6,040				6,040
Other comprehensive income (loss)					459			459
Issuance of common stock for stock options exercised (in shares)		50,424
Issuance of common stock for stock options exercised		$ 1	1,445					1,446
Vested restricted stock units (in shares)	8,773
Vested restricted stock units	$ 0						$ 0
Repurchase of common stock for net settlement of equity awards (in shares)						3,602
Repurchase of common stock for net settlement of equity awards						$ (172)		(172)
Stock-based compensation expense			1,290					1,290
Common stock dividend paid				(3,099)				(3,099)
Balance (in shares) at Mar. 31, 2023		23,714,913				1,572,197
Balance at Mar. 31, 2023		$ 238	192,003	100,714	(5,572)	$ (13,218)		274,165
Balance (in shares) at Dec. 31, 2022		23,655,716				1,568,595
Balance at Dec. 31, 2022		$ 237	189,268	97,773	(6,031)	$ (13,046)		268,201
Net income								14,138
Other comprehensive income (loss)								209
Balance (in shares) at Jun. 30, 2023		23,835,491				1,572,348
Balance at Jun. 30, 2023		$ 239	196,941	105,696	(5,822)	$ (13,227)		283,827
Balance (in shares) at Mar. 31, 2023		23,714,913				1,572,197
Balance at Mar. 31, 2023		$ 238	192,003	100,714	(5,572)	$ (13,218)		274,165
Net income				8,098				8,098
Other comprehensive income (loss)					(250)			(250)
Issuance of common stock for stock options exercised (in shares)		120,179
Issuance of common stock for stock options exercised		$ 1	3,626					3,627
Vested restricted stock units (in shares)		399
Vested restricted stock units		$ 0						0
Repurchase of common stock for net settlement of equity awards (in shares)						151
Repurchase of common stock for net settlement of equity awards						$ (9)		(9)
Stock-based compensation expense			1,312					1,312
Common stock dividend paid				(3,116)				(3,116)
Balance (in shares) at Jun. 30, 2023		23,835,491				1,572,348
Balance at Jun. 30, 2023		$ 239	196,941	105,696	(5,822)	$ (13,227)		283,827
Balance (in shares) at Dec. 31, 2023		23,911,760				1,584,512
Balance at Dec. 31, 2023		$ 239	200,755	115,430	(4,625)	$ (13,899)		297,900
Net income				9,887				9,887
Other comprehensive income (loss)					(933)			(933)
Issuance of common stock for stock options exercised (in shares)		107,930
Issuance of common stock for stock options exercised		$ 1	3,985					3,986
Vested restricted stock units (in shares)	9,547
Vested restricted stock units	$ 0						0
Repurchase of common stock for net settlement of equity awards (in shares)						5,850
Repurchase of common stock for net settlement of equity awards						$ (358)		(358)
Stock-based compensation expense			1,610					1,610
Common stock dividend paid				(3,589)				(3,589)
Balance (in shares) at Mar. 31, 2024		24,036,300				1,590,362
Balance at Mar. 31, 2024		$ 240	206,350	121,728	(5,558)	$ (14,257)		308,503
Balance (in shares) at Dec. 31, 2023		23,911,760				1,584,512
Balance at Dec. 31, 2023		$ 239	200,755	115,430	(4,625)	$ (13,899)		297,900
Net income								21,713
Other comprehensive income (loss)								(469)
Balance (in shares) at Jun. 30, 2024		24,059,300				1,590,457
Balance at Jun. 30, 2024		$ 240	208,689	129,961	(5,094)	$ (14,264)		319,532
Balance (in shares) at Mar. 31, 2024		24,036,300				1,590,362
Balance at Mar. 31, 2024		$ 240	206,350	121,728	(5,558)	$ (14,257)		308,503
Net income				11,826				11,826
Other comprehensive income (loss)					464			464
Issuance of common stock for stock options exercised (in shares)		22,700
Issuance of common stock for stock options exercised		$ 0	730					730
Vested restricted stock units (in shares)	223
Vested restricted stock units	$ 0						$ 0
Repurchase of common stock for net settlement of equity awards (in shares)						95
Repurchase of common stock for net settlement of equity awards								(7)
Stock-based compensation expense			1,609					1,609
Common stock dividend paid				(3,593)				(3,593)
Balance (in shares) at Jun. 30, 2024		24,059,300				1,590,457
Balance at Jun. 30, 2024		$ 240	$ 208,689	$ 129,961	$ (5,094)	$ (14,264)		$ 319,532