Allowance for Credit Losses and Reserve for Unfunded Loan Commitments - Activity in the Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 26,788	$ 25,854	$ 25,854
Charge-offs	(532)	(445)
Recoveries	37	30
Net (charge-offs) recoveries	(495)	(415)
(Credit to) provision for credit losses charged to expense	1,358	641
Balance, end of period	27,651	26,080	26,788
SBA loans held for investment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	1,535	1,221	1,221
Charge-offs	(350)		(370)
Recoveries	5	8
Net (charge-offs) recoveries	(345)	8
(Credit to) provision for credit losses charged to expense	(95)	(20)
Balance, end of period	1,095	1,209	1,535
Commercial loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	17,361	15,876	15,876
Charge-offs	(2)	(98)	(633)
Recoveries	5	12
Net (charge-offs) recoveries	3	(86)
(Credit to) provision for credit losses charged to expense	1,276	397
Balance, end of period	18,640	16,187	17,361
Residential mortgage loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	6,254	6,529	6,529
Charge-offs	(130)		(150)
Net (charge-offs) recoveries	(130)
(Credit to) provision for credit losses charged to expense	403	(135)
Balance, end of period	6,527	6,394	6,254
Consumer loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	775	1,022	1,022
Charge-offs	(50)	(70)	(361)
Recoveries	27	10
Net (charge-offs) recoveries	(23)	(60)
(Credit to) provision for credit losses charged to expense	8	(40)
Balance, end of period	760	922	775
Residential construction loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	863	1,206	1,206
Charge-offs		(277)	(277)
Net (charge-offs) recoveries		(277)
(Credit to) provision for credit losses charged to expense	(234)	439
Balance, end of period	$ 629	$ 1,368	$ 863