Loans and Allowance for Credit Losses on Loans - Schedule of Recorded Investment in Nonaccrual Loans and Loans Past Due 90 or More Days and Still Accruing Interest by Portfolio Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual Loans with a Related Allowance for Credit Losses	$ 3,024	$ 2,538
Nonaccrual Loans without a Related Allowance for Credit Losses	7,388	5,282
Total Nonaccrual Loans	10,412	7,820
90 or More Days Past Due & Still Accruing	0	0
Total	10,412	7,820
Loans Insured or Guaranteed by non-US Government Authorities
Financing Receivable Recorded Investment Past Due [Line Items]
Total	14,300	16,300
Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual Loans with a Related Allowance for Credit Losses	357
Nonaccrual Loans without a Related Allowance for Credit Losses	1,580
Total Nonaccrual Loans	1,937
90 or More Days Past Due & Still Accruing	0
Total	1,937
SBA—real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual Loans with a Related Allowance for Credit Losses	2,342	363
Nonaccrual Loans without a Related Allowance for Credit Losses	3,704	1,580
Total Nonaccrual Loans	6,046	1,943
90 or More Days Past Due & Still Accruing	0	0
Total	6,046	1,943
SBA—non-real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual Loans with a Related Allowance for Credit Losses	325	2,006
Nonaccrual Loans without a Related Allowance for Credit Losses	0	3,702
Total Nonaccrual Loans	325	5,708
90 or More Days Past Due & Still Accruing	0	0
Total	325	5,708
C&I
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual Loans with a Related Allowance for Credit Losses	0
Nonaccrual Loans without a Related Allowance for Credit Losses	0
Total Nonaccrual Loans	0
90 or More Days Past Due & Still Accruing	0
Total	0
Home mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual Loans with a Related Allowance for Credit Losses	0	169
Nonaccrual Loans without a Related Allowance for Credit Losses	2,104	0
Total Nonaccrual Loans	2,104	169
90 or More Days Past Due & Still Accruing	0	0
Total	$ 2,104	$ 169