CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Impact of adoption of ASC 326	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Impact of adoption of ASC 326	Treasury Stock	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interest
Beginning Balance at Dec. 31, 2019	$ 261,551		$ 12,905	$ 186,692	$ 98,239		$ (34,492)	$ (1,793)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	27,402				27,402
Other comprehensive income (loss)	11,422							11,422
10% stock dividend	0
Exercise of stock options	638		27	611
Restricted stock grants			20	(20)
Purchase of treasury stock	(16,927)						(16,927)
Stock based compensation	749			749
Dividends: Common Stock	(8,599)				(8,599)
Ending Balance at Dec. 31, 2020	272,643	$ (3,593)	12,952	188,032	113,449	$ (3,593)	(51,419)	9,629
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	39,806				39,806
Other comprehensive income (loss)	(3,324)							(3,324)
10% stock dividend	35,947		1,094	34,853	(35,947)
Exercise of stock options	2,019		90	1,929
Restricted stock grants			3	(3)
Stock based compensation	733			733
Dividends: Common Stock	(9,663)				(9,663)
Ending Balance at Dec. 31, 2021	302,214		14,139	225,544	107,645		(51,419)	6,305
Beginning balance at Dec. 31, 2021	302,214
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	40,423				40,447				$ (24)
Other comprehensive income (loss)	(30,565)							(30,565)
Contributions from noncontrolling interest	598								598
10% stock dividend	0
Exercise of stock options	1,565		70	1,495
Purchase of treasury stock	(8,838)						(8,838)
Stock based compensation	688			688
Dividends: Common Stock	(10,527)				(10,527)
Ending Balance at Dec. 31, 2022	$ 295,558		$ 14,209	$ 227,727	$ 137,565		$ (60,257)	$ (24,260)	$ 574