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Fair Value of Financial Instruments - Estimated Fair Values and Related Carrying or Notional Amounts (Detail) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financial Assets: |  |
Securities - available-for-sale | $ 365,209 | $ 358,478
Financial Liabilities: |  |
Subordinated notes, net of unamortized issuance costs | 34,759 | 34,702
Dividend payable | 2,975 | 2,974
Reported Value Measurement [Member] |  |
Financial Assets: |  |
Cash and cash equivalents | 193,068 | 142,201
Interest-bearing time deposits | 3,221 | 2,740
Securities - available-for-sale | 365,209 | 358,478
Other securities | 14,721 | 17,138
Loans held for sale | 1,628 | 1,576
Loans, net | 2,534,468 | 2,556,167
Interest receivable | 13,327 | 11,774
Financial Liabilities: |  |
Total Deposits | 2,641,090 | 2,607,463
Federal funds purchased and securities sold under agreement to repurchase | 27,218 | 28,218
Federal Home Loan Bank advances | 266,102 | 265,750
Subordinated notes, net of unamortized issuance costs | 34,759 | 34,702
Interest payable | 6,459 | 5,441
Fair Value [Member] |  |
Financial Assets: |  |
Cash and cash equivalents | 193,068 | 142,201
Interest-bearing time deposits | 3,197 | 2,725
Securities - available-for-sale | 365,209 | 358,478
Other securities | 14,721 | 17,138
Loans held for sale | 1,603 | 1,552
Loans, net | 2,507,497 | 2,396,540
Interest receivable | 13,327 | 11,774
Financial Liabilities: |  |
Total Deposits | 2,634,771 | 2,600,613
Federal funds purchased and securities sold under agreement to repurchase | 27,218 | 28,218
Federal Home Loan Bank advances | 266,231 | 260,400
Subordinated notes, net of unamortized issuance costs | 30,223 | 30,676
Interest payable | 6,459 | 5,441
Level 1 [Member] |  |
Financial Assets: |  |
Cash and cash equivalents | 193,068 | 142,201
Securities - available-for-sale | 94,765 | 99,900
Financial Liabilities: |  |
Total Deposits | 479,069 | 528,465
Level 2 [Member] |  |
Financial Assets: |  |
Interest-bearing time deposits | 3,197 | 2,725
Securities - available-for-sale | 268,658 | 256,118
Financial Liabilities: |  |
Subordinated notes, net of unamortized issuance costs | 30,223 | 30,676
Level 3 [Member] |  |
Financial Assets: |  |
Securities - available-for-sale | 1,786 | 2,460
Other securities | 14,721 | 17,138
Loans held for sale | 1,603 | 1,552
Loans, net | 2,507,497 | 2,396,540
Interest receivable | 13,327 | 11,774
Financial Liabilities: |  |
Total Deposits | 2,155,702 | 2,072,148
Federal funds purchased and securities sold under agreement to repurchase | 27,218 | 28,218
Federal Home Loan Bank advances | 266,231 | 260,400
Interest payable | 6,459 | 5,441
Interest Bearing Deposits [Member] | Reported Value Measurement [Member] |  |
Financial Liabilities: |  |
Total Deposits | 1,494,429 | 1,415,981
Interest Bearing Deposits [Member] | Fair Value [Member] |  |
Financial Liabilities: |  |
Total Deposits | 1,493,910 | 1,416,007
Interest Bearing Deposits [Member] | Level 3 [Member] |  |
Financial Liabilities: |  |
Total Deposits | 1,493,910 | 1,416,007
Non Interest Bearing Deposits [Member] | Reported Value Measurement [Member] |  |
Financial Liabilities: |  |
Total Deposits | 479,069 | 528,465
Non Interest Bearing Deposits [Member] | Fair Value [Member] |  |
Financial Liabilities: |  |
Total Deposits | 479,069 | 528,465
Non Interest Bearing Deposits [Member] | Level 1 [Member] |  |
Financial Liabilities: |  |
Total Deposits | 479,069 | 528,465
Time Deposits [Member] | Reported Value Measurement [Member] |  |
Financial Liabilities: |  |
Total Deposits | 667,592 | 663,017
Time Deposits [Member] | Fair Value [Member] |  |
Financial Liabilities: |  |
Total Deposits | 661,792 | 656,141
Time Deposits [Member] | Level 3 [Member] |  |
Financial Liabilities: |  |
Total Deposits | $ 661,792 | $ 656,141

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