CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Noncontrolling Interest
Beginning Balance at Dec. 31, 2022	$ 295,558	$ 14,209	$ 227,727	$ 137,565	$ (60,257)	$ (24,260)	$ 574
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	17,853			17,862			(9)
Other comprehensive loss	(2,245)					(2,245)
Exercise of stock options	225	8	217
Purchase of treasury stock	(8,850)				(8,850)
Restricted stock grants		1	(1)
Stock based compensation	298		298
Dividends: Common Stock	(5,412)			(5,412)
Ending Balance at Jun. 30, 2023	297,427	14,218	228,241	150,015	(69,107)	(26,505)	565
Beginning Balance at Mar. 31, 2023	300,270	14,218	228,091	143,102	(61,001)	(24,710)	570
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	9,576			9,581			(5)
Other comprehensive loss	(1,795)					(1,795)
Purchase of treasury stock	(8,106)				(8,106)
Stock based compensation	150		150
Dividends: Common Stock	(2,668)			(2,668)
Ending Balance at Jun. 30, 2023	297,427	14,218	228,241	150,015	(69,107)	(26,505)	565
Beginning Balance at Dec. 31, 2023	303,846	14,242	228,986	156,878	(71,484)	(25,322)	546
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	14,104			14,123			(19)
Other comprehensive loss	(275)					(275)
Exercise of stock options	564	25	539
Purchase of treasury stock	(4,427)				(4,427)
Restricted stock grants		2	(2)
Stock based compensation	270		270
Dividends: Common Stock	(5,512)			(5,512)
Ending Balance at Jun. 30, 2024	308,570	14,269	229,793	165,489	(75,911)	(25,597)	527
Beginning Balance at Mar. 31, 2024	305,910	14,248	229,187	160,797	(71,819)	(27,042)	539
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	7,423			7,435			(12)
Other comprehensive loss	1,445					1,445
Exercise of stock options	495	22	473
Purchase of treasury stock	(4,092)				(4,092)
Restricted stock grants		(1)	1
Stock based compensation	132		132
Dividends: Common Stock	(2,743)			(2,743)
Ending Balance at Jun. 30, 2024	$ 308,570	$ 14,269	$ 229,793	$ 165,489	$ (75,911)	$ (25,597)	$ 527