CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Common stock, shares outstanding at Dec. 31, 2022		17,183,000
Shareholders' equity at Dec. 31, 2022	$ 453,669	$ 1,085	$ 127,056	$ 492,043	$ (157,800)	$ (8,715)
Net income	12,812			12,812
Total other comprehensive income (loss), net of tax	16,040				16,040
Cash dividends declared	(9,624)			(9,624)
Share-based compensation	858		858
Exercise of stock options and issuance of other compensation-related equity awards, net of awards surrendered, shares		3,000
Exercise of stock options and issuance of other compensation-related equity awards, net of awards surrendered, value	(31)	$ 0	(180)			149
Treasury stock repurchased		(200,000)
Treasury stock purchased under Stock Repurchase Program, amount acquired	(8,741)					(8,741)
Common stock, shares outstanding at Mar. 31, 2023		16,986,000
Shareholders' equity at Mar. 31, 2023	$ 464,983	$ 1,085	127,734	495,231	(141,760)	(17,307)
Common stock, shares outstanding at Dec. 31, 2023	17,030,987	17,031,000
Shareholders' equity at Dec. 31, 2023	$ 472,686	$ 1,085	126,150	501,917	(141,153)	(15,313)
Net income	10,936			10,936
Total other comprehensive income (loss), net of tax	(7,760)				(7,760)
Cash dividends declared	(9,678)			(9,678)
Share-based compensation	753		753
Exercise of stock options and issuance of other compensation-related equity awards, net of awards surrendered, shares		2,000
Exercise of stock options and issuance of other compensation-related equity awards, net of awards surrendered, value	$ (17)	$ 0	(118)			101
Common stock, shares outstanding at Mar. 31, 2024	17,033,174	17,033,000
Shareholders' equity at Mar. 31, 2024	$ 466,920	$ 1,085	$ 126,785	$ 503,175	$ (148,913)	$ (15,212)