Loans and Allowance for Credit Losses on Loans - Schedule of Aging Analysis of Recorded Investment in Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	$ 2,071,580	$ 1,956,852
CRE
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	1,021,431	980,247
SBA—real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	241,451	231,962
SBA—non-real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	21,973	21,748
C&I
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	193,359	213,097
Home mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	593,256	509,524
Consumer and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	110	274
Total Past Due \| Loans Insured or Guaranteed by non-US Government Authorities
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	13,900	16,300
30-59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	4,807	3,159
30-59 Days Past Due \| CRE
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
30-59 Days Past Due \| SBA—real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	4,275	237
30-59 Days Past Due \| SBA—non-real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	234	133
30-59 Days Past Due \| C&I
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	15
30-59 Days Past Due \| Home mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	298	2,774
30-59 Days Past Due \| Consumer and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
60-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	4,996	5,805
60-89 Days Past Due \| CRE
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
60-89 Days Past Due \| SBA—real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	1,882	74
60-89 Days Past Due \| SBA—non-real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	137
60-89 Days Past Due \| C&I
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
60-89 Days Past Due \| Home mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	3,114	5,594
60-89 Days Past Due \| Consumer and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
90 or More Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
90 or More Days Past Due \| CRE
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
90 or More Days Past Due \| SBA—real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
90 or More Days Past Due \| SBA—non-real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
90 or More Days Past Due \| C&I
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
90 or More Days Past Due \| Home mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
90 or More Days Past Due \| Consumer and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
Current Accruing Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	2,052,861	1,940,068
Current Accruing Loans \| CRE
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	1,019,629	978,304
Current Accruing Loans \| SBA—real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	229,918	225,943
Current Accruing Loans \| SBA—non-real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	21,419	21,309
Current Accruing Loans \| C&I
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	193,359	213,082
Current Accruing Loans \| Home mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	588,426	501,156
Current Accruing Loans \| Consumer and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	110	274
Nonperforming Financial Instruments
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	8,916	7,820
Nonperforming Financial Instruments \| CRE
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	1,802	1,943
Nonperforming Financial Instruments \| SBA—real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	5,376	5,708
Nonperforming Financial Instruments \| SBA—non-real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	320	169
Nonperforming Financial Instruments \| C&I
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	0	0
Nonperforming Financial Instruments \| Home mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	1,418	0
Nonperforming Financial Instruments \| Consumer and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	$ 0	$ 0