Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Accumulated Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2020	$ 438,816	$ 206	$ 215,316	$ (22,370)	$ 224,645	$ 21,019
Beginning Balance, Shares at Dec. 31, 2020		20,589,309		(1,258,250)
Comprehensive income:
Net income	19,312				19,312
Other comprehensive income:
Change in unrealized gains on debt securities, net of tax	(5,048)					(5,048)
Comprehensive income	$ 14,264
Purchase of treasury stock, Shares	0
Share-based compensation	$ 152		152
Dividends to shareholders	(5,606)				(5,606)
Ending Balance at Mar. 31, 2021	447,626	$ 206	215,468	$ (22,370)	238,351	15,971
Ending Balance, Shares at Mar. 31, 2021		20,589,309		(1,258,250)
Beginning Balance at Dec. 31, 2021	$ 399,323	$ 206	217,458	$ (22,370)	190,492	13,537
Beginning Balance, Shares at Dec. 31, 2021	19,364,054	20,622,304		(1,258,250)
Comprehensive income:
Net income	$ 17,331				17,331
Other comprehensive income:
Change in unrealized gains on debt securities, net of tax	(13,480)					(13,480)
Comprehensive income	3,851
Common stock issued, Shares		261
Purchase of treasury stock	$ (2,059)			$ (2,059)
Purchase of treasury stock, Shares	(43,893)			(43,893)
Share-based compensation	$ 147		147
Dividends to shareholders	(5,989)				(5,989)
Ending Balance at Mar. 31, 2022	$ 395,273	$ 206	$ 217,605	$ (24,429)	$ 201,834	$ 57
Ending Balance, Shares at Mar. 31, 2022	19,320,422	20,622,565		(1,302,143)