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Loans and Allowance for Credit Losses on Loans - Schedule of Composition of Loan Portfolio (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Jan. 01, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021
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Loans And Leases Receivable Disclosure [Line Items] |  |  |  |  |
Gross loans receivable | $ 1,692,485 |  | $ 1,678,292 |  |
Allowance for credit losses | (20,814) | $ (21,165) | (19,241) | $ (16,672) | $ (16,123)
Loans receivable, net | 1,671,671 |  | 1,659,051 |  |
Deferred loan fees, unamortized premiums and unaccreted (discounts) | (70) |  | 160 |  |
Real Estate | Commercial real estate |  |  |  |  |
Loans And Leases Receivable Disclosure [Line Items] |  |  |  |  |
Gross loans receivable | 833,615 |  | 842,208 |  |
Allowance for credit losses |  | (7,826) |  |  |
Real Estate | SBA—real estate |  |  |  |  |
Loans And Leases Receivable Disclosure [Line Items] |  |  |  |  |
Gross loans receivable | 225,719 |  | 221,340 |  |
Allowance for credit losses |  | (1,369) |  |  |
SBA—non-real estate |  |  |  |  |
Loans And Leases Receivable Disclosure [Line Items] |  |  |  |  |
Gross loans receivable | 13,275 |  | 13,377 |  |
Allowance for credit losses | (67) | (65) | (207) | (169) | (199)
C&I |  |  |  |  |
Loans And Leases Receivable Disclosure [Line Items] |  |  |  |  |
Gross loans receivable | 117,841 |  | 116,951 |  |
Allowance for credit losses | (1,270) | (1,323) | (1,643) | (3,492) | (2,848)
Home mortgage |  |  |  |  |
Loans And Leases Receivable Disclosure [Line Items] |  |  |  |  |
Gross loans receivable | 500,635 |  | 482,949 |  |
Allowance for credit losses | (11,472) | (10,579) | (8,826) | (4,768) | (2,891)
Consumer |  |  |  |  |
Loans And Leases Receivable Disclosure [Line Items] |  |  |  |  |
Gross loans receivable | 1,400 |  | 1,467 |  |
Allowance for credit losses | $ (3) | $ (3) | $ (7) | $ (13) | $ (13)

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