Consolidated Statements of Shareholders' Equity (unaudited) - USD ($) $ in Thousands	Total		Series 2021 Preferred Stock	Preferred Stock	Common Stock	Unearned ESOP Shares	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2020	$ 281,580			$ 0	$ 94,964	$ (472)	$ 181,643	$ 5,445
Comprehensive income:
Net income	20,919						20,919
Other comprehensive income	1,656							1,656
Stock Issued During Period, Value, Stock Options Exercised	0				0
Stock Issued During Period, Value, Restricted Stock Award, Gross	0				0
Share-based compensation expense	252				252
Stock Issued During Period, Shares, New Issues			1,500
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants	14,920			14,920
Stock Issued During Period, Value, Employee Stock Ownership Plan	278				153	125
Stock Issued During Period, Value, Dividend Reinvestment Plan	142				142
Dividends, Preferred Stock, Cash	(139)						(139)
Common stock cash dividends declared	(4,401)						(4,401)
Ending Balance at Jun. 30, 2021	$ 315,207			14,920	95,511	(347)	198,022	7,101
Comprehensive income:
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	380
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	3,400
Stock Issued During Period, Shares, Employee Stock Ownership Plan	11,501
Common stock issuances from reinvested dividends, number of shares	5,772
Common Stock, Dividends, Per Share, Declared	$ 0.34
Beginning Balance at Mar. 31, 2021	$ 293,445			0	95,234	(410)	189,803	8,818
Comprehensive income:
Net income	10,560						10,560
Other comprehensive income	(1,717)							(1,717)
Stock Issued During Period, Value, Restricted Stock Award, Gross	0				0
Share-based compensation expense	126				126
Stock Issued During Period, Shares, New Issues			1,500
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants	14,920			14,920
Stock Issued During Period, Value, Employee Stock Ownership Plan	142				79	63
Stock Issued During Period, Value, Dividend Reinvestment Plan	72				72
Dividends, Preferred Stock, Cash	(139)						(139)
Common stock cash dividends declared	(2,202)						(2,202)
Ending Balance at Jun. 30, 2021	$ 315,207			14,920	95,511	(347)	198,022	7,101
Comprehensive income:
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	3,400
Stock Issued During Period, Shares, Employee Stock Ownership Plan	5,750
Common stock issuances from reinvested dividends, number of shares	3,193
Common Stock, Dividends, Per Share, Declared	$ 0.17
Beginning Balance at Dec. 31, 2021	$ 327,473	[1]		14,920	89,525	(224)	217,770	5,482
Comprehensive income:
Net income	23,707						23,707
Other comprehensive income	(12,956)							(12,956)
Stock Issued During Period, Value, Stock Options Exercised	0				0
Stock Issued During Period, Value, Restricted Stock Award, Gross	0				0
Share-based compensation expense	324				324
Stock Issued During Period, Value, Employee Stock Ownership Plan	277				165	112
Stock Issued During Period, Value, Dividend Reinvestment Plan	105				105
Dividends, Preferred Stock, Cash	(450)						(450)
Common stock cash dividends declared	(4,589)						(4,589)
Ending Balance at Jun. 30, 2022	$ 333,891			14,920	90,119	(112)	236,438	(7,474)
Comprehensive income:
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	679
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	5,246
Stock Issued During Period, Shares, Employee Stock Ownership Plan	10,351
Common stock issuances from reinvested dividends, number of shares	4,021
Common Stock, Dividends, Per Share, Declared	$ 0.36
Beginning Balance at Mar. 31, 2022	$ 330,466			14,920	89,842	(167)	226,944	(1,073)
Comprehensive income:
Net income	12,014						12,014
Other comprehensive income	(6,401)							(6,401)
Stock Issued During Period, Value, Stock Options Exercised	0				0
Stock Issued During Period, Value, Restricted Stock Award, Gross	0				0
Share-based compensation expense	155				155
Stock Issued During Period, Value, Employee Stock Ownership Plan	137				82	55
Stock Issued During Period, Value, Dividend Reinvestment Plan	40				40
Dividends, Preferred Stock, Cash	(225)						(225)
Common stock cash dividends declared	(2,295)						(2,295)
Ending Balance at Jun. 30, 2022	$ 333,891			$ 14,920	$ 90,119	$ (112)	$ 236,438	$ (7,474)
Comprehensive income:
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	289
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	3,400
Stock Issued During Period, Shares, Employee Stock Ownership Plan	5,175
Common stock issuances from reinvested dividends, number of shares	1,464
Common Stock, Dividends, Per Share, Declared	$ 0.18

[1] Derived from audited consolidated financial statements