Servicing Assets - Schedule of Servicing Assets with Key Assumptions Used to Estimate Fair Value (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Servicing Assets at Fair Value [Line Items]
Carrying amount	$ 5,902	$ 6,666	$ 6,205	$ 6,920	$ 7,142	$ 7,347
Fair value	8,482	9,116
Underlying loans being serviced	527,062	532,231
Residential Mortgage
Servicing Assets at Fair Value [Line Items]
Carrying amount	43	49	45	51	55	64
Fair value	$ 95	$ 104
Discount rate	7.85%	9.93%
Prepayment speed	14.62%	12.75%
Weighted-average remaining life	19 years	19 years 9 months 18 days
Underlying loans being serviced	$ 9,560	$ 10,666
CRE SBA
Servicing Assets at Fair Value [Line Items]
Carrying amount	5,343	6,135	5,656	6,434	6,655	6,831
Fair value	$ 7,580	$ 8,284
Discount rate	12.14%	12.30%
Prepayment speed	18.46%	16.71%
Weighted-average remaining life	20 years 8 months 12 days	21 years
Underlying loans being serviced	$ 453,823	$ 461,300
C&I SBA
Servicing Assets at Fair Value [Line Items]
Carrying amount	516	482	$ 504	$ 435	$ 432	$ 452
Fair value	$ 807	$ 728
Discount rate	15.85%	15.46%
Prepayment speed	14.10%	13.97%
Weighted-average remaining life	7 years 3 months 18 days	7 years 1 month 6 days
Underlying loans being serviced	$ 63,679	$ 60,265