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Commitments - Summary of Financial Instrument Commitments (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Fixed Letters of Credit |  |
Financial instrument commitments |  |
Financial instrument commitments | $ 6,675 | $ 840
Fixed Letters of Credit | Commitments to Extend Credit to Borrowers [Member] |  |
Financial instrument commitments |  |
Financial instrument commitments | 6,675 | 840
Fixed Letters of Credit | Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit |  |
Financial instrument commitments |  |
Financial instrument commitments | 3,514 | 384
Fixed Letters of Credit | Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee |  |
Financial instrument commitments |  |
Financial instrument commitments | 3,161 | 456
Fixed Letters of Credit | Unused lines of Credit |  |
Financial instrument commitments |  |
Loan commitments | 139,070 | 84,225
Variable Letters of Credit |  |
Financial instrument commitments |  |
Financial instrument commitments | 29,421 | 32,448
Variable Letters of Credit | Commitments to Extend Credit to Borrowers [Member] |  |
Financial instrument commitments |  |
Financial instrument commitments | 29,354 | 32,381
Variable Letters of Credit | Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit |  |
Financial instrument commitments |  |
Financial instrument commitments | 15,365 | 17,474
Variable Letters of Credit | Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee |  |
Financial instrument commitments |  |
Financial instrument commitments | 13,989 | 14,907
Variable Letters of Credit | Commitments to Extend Credit Nonborrowers [Member] | Performance Guarantee |  |
Financial instrument commitments |  |
Financial instrument commitments | 67 | 67
Variable Letters of Credit | Unused lines of Credit |  |
Financial instrument commitments |  |
Loan commitments | 860,255 | 895,665
Letter of Credit |  |
Financial instrument commitments |  |
Financial instrument commitments | 36,096 | 33,288
Letter of Credit | Commitments to Extend Credit to Borrowers [Member] |  |
Financial instrument commitments |  |
Financial instrument commitments | 36,029 | 33,221
Letter of Credit | Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit |  |
Financial instrument commitments |  |
Financial instrument commitments | 18,879 | 17,858
Letter of Credit | Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee |  |
Financial instrument commitments |  |
Financial instrument commitments | 17,150 | 15,363
Letter of Credit | Commitments to Extend Credit Nonborrowers [Member] | Performance Guarantee |  |
Financial instrument commitments |  |
Financial instrument commitments | 67 | 67
Letter of Credit | Unused lines of Credit |  |
Financial instrument commitments |  |
Loan commitments | $ 999,325 | $ 979,890

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