Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock, Voting	Common Stock, Nonvoting	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income
Beginning balance at Dec. 31, 2018	$ 254,379	$ 878	$ 17,592	$ 133	$ 211,789	$ 27,303	$ (3,316)
Beginning balance, shares at Dec. 31, 2018			17,592,160	132,561
Net issuance of restricted common stock	(304)		$ (9)		(295)
Net issuance of restricted common stock, shares			(8,721)
Stock-based compensation expense	1,262				1,262
Net exercise of common stock options	$ 1,931		$ 273		1,658
Net exercise of common stock options, shares	286,701		272,660
Conversion of preferred stock to common stock, shares			878,048
Conversion of preferred stock to common stock		$ (878)	$ 878
Conversion of non-voting common stock to common stock			$ 133	$ (133)
Conversion of non-voting common stock to common stock, shares			132,561	(132,561)
Repurchase of common stock, shares			(504,786)
Repurchase of common stock	$ (7,836)		$ (505)		(7,331)
Common and preferred stock dividends declared	(3,507)					(3,507)
Net income	22,422					22,422
Other Comprehensive income (loss)	4,699						4,699
Ending balance at Dec. 31, 2019	273,046		$ 18,362		207,083	46,218	1,383
Ending balance, shares at Dec. 31, 2019			18,361,922
Net issuance of restricted common stock	(43)		$ 122		(165)
Net issuance of restricted common stock, shares			122,381
Stock-based compensation expense	1,223				1,223
Net exercise of common stock options	$ 106		$ 21		85
Net exercise of common stock options, shares	24,613		20,582
Repurchase of common stock, shares			(147,800)
Repurchase of common stock	$ (1,437)		$ (148)		(1,289)
Issuance of common stock in conjunction with mergers	43,585		$ 3,632		39,953
Issuance of common stock in conjunction with mergers, shares			3,631,718
Common stock dividends declared	(4,035)					(4,035)
Net income	24,696					24,696
Other Comprehensive income (loss)	6,345						6,345
Ending balance at Dec. 31, 2020	343,486		$ 21,989		246,890	66,879	7,728
Ending balance, shares at Dec. 31, 2020			21,988,803
Net issuance of restricted common stock	(219)		$ 110		(329)
Net issuance of restricted common stock, shares			110,103
Stock-based compensation expense	1,600				1,600
Net exercise of common stock options	$ 1,077		$ 94		983
Net exercise of common stock options, shares	96,344		94,483
Repurchase of common stock, shares			(27,260)
Repurchase of common stock	$ (462)		$ (27)		(435)
Common stock dividends declared	(5,067)					(5,067)
Net income	48,677					48,677
Other Comprehensive income (loss)	(8,998)						(8,998)
Ending balance at Dec. 31, 2021	$ 380,094		$ 22,166		$ 248,709	$ 110,489	$ (1,270)
Ending balance, shares at Dec. 31, 2021			22,166,129