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	24,143			24,159			(16)
Other comprehensive loss	(5,269)					(5,269)
Exercise of stock options	516	21	495
Purchase of treasury stock	(10,539)				(10,539)
Restricted stock grants		1	(1)
Stock based compensation	445		445
Dividends: Common Stock	(8,070)			(8,070)
Ending Balance at Sep. 30, 2023	296,784	14,231	228,666	153,654	(70,796)	(29,529)	558
Beginning Balance at Jun. 30, 2023	297,427	14,218	228,241	150,015	(69,107)	(26,505)	565
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	6,290			6,297			(7)
Other comprehensive loss	(3,024)					(3,024)
Exercise of stock options	291	13	278
Purchase of treasury stock	(1,689)				(1,689)
Stock based compensation	147		147
Dividends: Common Stock	(2,658)			(2,658)
Ending Balance at Sep. 30, 2023	296,784	14,231	228,666	153,654	(70,796)	(29,529)	558
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	21,483			21,520			(37)
Other comprehensive loss	6,361					6,361
Exercise of stock options	1,710	77	1,633
Purchase of treasury stock	(6,266)				(6,266)
Restricted stock grants		2	(2)
Stock based compensation	409		409
Dividends: Common Stock	(8,250)			(8,250)
Ending Balance at Sep. 30, 2024	319,293	14,321	231,026	170,148	(77,750)	(18,961)	509
Beginning Balance at Jun. 30, 2024	308,570	14,269	229,793	165,489	(75,911)	(25,597)	527
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	7,379			7,397			(18)
Other comprehensive loss	6,636					6,636
Exercise of stock options	1,146	52	1,094
Purchase of treasury stock	(1,839)				(1,839)
Stock based compensation	139		139
Dividends: Common Stock	(2,738)			(2,738)
Ending Balance at Sep. 30, 2024	$ 319,293	$ 14,321	$ 231,026	$ 170,148	$ (77,750)	$ (18,961)	$ 509