Consolidated Statements of Shareholders' Equity (unaudited) - USD ($) $ in Thousands	Total		Series 2021 Preferred Stock	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Common Stock	Preferred Stock	Unearned ESOP Shares	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]
Beginning Balance at Dec. 31, 2019	$ 247,764			$ 165,859	$ 2,535	$ 80,084	$ 0	$ (714)
Comprehensive income:
Net income	21,075			21,075
Other comprehensive income	1,655				1,655
Cumulative Effect on Retained Earnings, Net of Tax (Deprecated 2020-01-31)	(6,756)
Cumulative Effect on Retained Earnings, Net of Tax (Deprecated 2020-01-31) | Accounting Standards Update 2016-13 [Member]									$ (6,756)
Share-based compensation expense	402					402
Proceeds from Issuance of Preferred Stock and Preference Stock	0
Stock Issued During Period, Value, Employee Stock Ownership Plan	310					128		182
Stock Repurchased and Retired During Period, Value	$ (1,444)					(1,444)
Stock Issued During Period, Shares, Acquisitions	570,000
Stock Issued During Period, Value, Acquisitions	$ 15,354					15,354
Stock Issued During Period, Value, Dividend Reinvestment Plan	193					193
Dividends, Preferred Stock, Cash	0
Common stock cash dividends declared	(6,590)			(6,590)
Ending Balance at Sep. 30, 2020	$ 271,963			173,588	4,190	94,717	0	(532)
Comprehensive income:
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	651
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 0					0
Beginning Balance at Jun. 30, 2020	263,431			166,163	3,322	94,539	0	(593)
Comprehensive income:
Net income	9,620			9,620
Other comprehensive income	868				868
Share-based compensation expense	79					79
Stock Issued During Period, Value, Employee Stock Ownership Plan	88					27		61
Stock Issued During Period, Value, Dividend Reinvestment Plan	72					72
Dividends, Preferred Stock, Cash	0
Common stock cash dividends declared	(2,195)			(2,195)
Ending Balance at Sep. 30, 2020	271,963			173,588	4,190	94,717	0	(532)
Beginning Balance at Dec. 31, 2020	281,580	[1]		181,643	5,445	94,964	0	(472)
Comprehensive income:
Net income	33,157			33,157
Other comprehensive income	(357)				(357)
Stock Issued During Period, Value, Stock Options Exercised	13					13
Share-based compensation expense	448					448
Stock Issued During Period, Shares, New Issues			1,500
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants	14,920						14,920
Proceeds from Issuance of Preferred Stock and Preference Stock	14,920
Stock Issued During Period, Value, Employee Stock Ownership Plan	412					225		187
Stock Issued During Period, Value, Dividend Reinvestment Plan	213					213
Dividends, Preferred Stock, Cash	(364)			(364)
Common stock cash dividends declared	(6,733)			(6,733)
Ending Balance at Sep. 30, 2021	$ 323,289			207,703	5,088	95,863	14,920	(285)
Comprehensive income:
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	3,400
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	5,380
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 0					0
Beginning Balance at Jun. 30, 2021	315,207			198,022	7,101	95,511	14,920	(347)
Comprehensive income:
Net income	12,238			12,238
Other comprehensive income	(2,013)				(2,013)
Stock Issued During Period, Value, Stock Options Exercised	13					13
Share-based compensation expense	195					195
Stock Issued During Period, Value, Employee Stock Ownership Plan	134					72		62
Stock Issued During Period, Value, Dividend Reinvestment Plan	72					72
Dividends, Preferred Stock, Cash	(225)			(225)
Common stock cash dividends declared	(2,332)			(2,332)
Ending Balance at Sep. 30, 2021	$ 323,289			$ 207,703	$ 5,088	$ 95,863	$ 14,920	$ (285)
Comprehensive income:
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	5,000

[1] Derived from audited consolidated financial statements