Loans and Asset Quality - Schedule of Allowance of Credit Losses By Category (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				$ 20,628				$ 19,176	$ 20,628	$ 19,176	$ 17,951
Provision for credit losses	$ 250	$ 185	$ 300	0	$ 750	$ 600	$ 250	150	735	1,750	1,900
Charge-offs									(473)	(547)	(885)
Recoveries									168	249	210
Ending Balance	21,336				20,628				21,336	20,628	19,176
Impact of ASC 326 Adoption
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				278					278
Ending Balance					278					278
Real estate | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				7,720				6,749	7,720	6,749	5,798
Provision for credit losses									522	970	1,401
Charge-offs									0	0	(450)
Recoveries									0	1	0
Ending Balance	9,118				7,720				9,118	7,720	6,749
Real estate | Commercial real estate | Impact of ASC 326 Adoption
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				876					876
Ending Balance					876					876
Real estate | One-to-four family residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				5,682				5,375	5,682	5,375	5,390
Provision for credit losses									584	296	(23)
Charge-offs									(23)	0	(10)
Recoveries									10	11	18
Ending Balance	7,484				5,682				7,484	5,682	5,375
Real estate | One-to-four family residential | Impact of ASC 326 Adoption
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				1,231					1,231
Ending Balance					1,231					1,231
Real estate | Construction and development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				1,654				1,326	1,654	1,326	1,699
Provision for credit losses									108	328	(375)
Charge-offs									(9)	(18)	0
Recoveries									0	18	2
Ending Balance	1,309				1,654				1,309	1,654	1,326
Real estate | Construction and development | Impact of ASC 326 Adoption
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				(444)					(444)
Ending Balance					(444)					(444)
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				4,350				4,465	4,350	4,465	3,949
Provision for credit losses									(947)	(162)	563
Charge-offs									(58)	(39)	(74)
Recoveries									30	86	27
Ending Balance	2,553				4,350				2,553	4,350	4,465
Commercial and industrial | Impact of ASC 326 Adoption
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				(822)					(822)
Ending Balance					(822)					(822)
Tax-exempt
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				751				749	751	749	680
Provision for credit losses									251	2	69
Charge-offs									0	0	0
Recoveries									0	0	0
Ending Balance	575				751				575	751	749
Tax-exempt | Impact of ASC 326 Adoption
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				(427)					(427)
Ending Balance					(427)					(427)
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				471				$ 512	471	512	435
Provision for credit losses									217	316	265
Charge-offs									(383)	(490)	(351)
Recoveries									128	133	163
Ending Balance	$ 297				471				297	471	$ 512
Consumer | Impact of ASC 326 Adoption
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				$ (136)					$ (136)
Ending Balance					$ (136)					$ (136)