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Fair Value of Financial Instruments - Estimated Fair Values and Related Carrying or Notional Amounts (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financial Assets: |  |
Securities - available-for-sale | $ 429,931 | $ 307,812
Financial Liabilities: |  |
Other borrowings | 40,000 |
Subordinated notes, net of unamortized issuance costs | 34,471 |
Reported Value Measurement [Member] |  |
Financial Assets: |  |
Cash and cash equivalents | 180,823 | 175,706
Interest-bearing time deposits | 10,913 | 4,653
Securities - available-for-sale | 429,931 | 307,812
Other securities | 8,162 | 5,939
Loans held for sale | 7,714 | 7,740
Loans, net | 1,841,177 | 1,289,318
Interest receivable | 7,209 | 6,188
Financial Liabilities: |  |
Total Deposits | 2,193,462 | 1,596,162
Fed funds purchased and securities sold under agreement to repurchase | 29,268 | 30,239
Federal Home Loan Bank advances | 24,065 | 17,861
Other borrowings | 40,000 |
Subordinated notes, net of unamortized issuance costs | 34,471 |
Interest payable | 1,125 | 338
Fair Value [Member] |  |
Financial Assets: |  |
Cash and cash equivalents | 180,832 | 175,706
Interest-bearing time deposits | 10,933 | 4,677
Securities - available-for-sale | 429,931 | 307,812
Other securities | 8,162 | 5,939
Loans held for sale | 7,844 | 7,740
Loans, net | 1,864,386 | 1,261,440
Interest receivable | 7,209 | 6,188
Financial Liabilities: |  |
Total Deposits | 2,197,543 | 1,605,890
Fed funds purchased and securities sold under agreement to repurchase | 29,268 | 30,239
Federal Home Loan Bank advances | 24,305 | 17,872
Other borrowings | 40,000 |
Subordinated notes, net of unamortized issuance costs | 35,000 |
Interest payable | 1,125 | 338
Level 1 [Member] |  |
Financial Assets: |  |
Cash and cash equivalents | 180,823 | 175,706
Securities - available-for-sale | 89,177 |
Level 2 [Member] |  |
Financial Assets: |  |
Interest-bearing time deposits | 10,933 | 4,677
Securities - available-for-sale | 335,981 | 306,250
Financial Liabilities: |  |
Total Deposits | 473,689 | 351,147
Other borrowings | 40,000 |
Subordinated notes, net of unamortized issuance costs | 35,000 |
Level 3 [Member] |  |
Financial Assets: |  |
Securities - available-for-sale | 4,773 | 1,562
Other securities | 8,162 | 5,939
Loans held for sale | 7,844 | 7,740
Loans, net | 1,864,386 | 1,261,440
Interest receivable | 7,209 | 6,188
Financial Liabilities: |  |
Total Deposits | 1,723,854 | 1,254,743
Fed funds purchased and securities sold under agreement to repurchase | 29,268 | 30,239
Federal Home Loan Bank advances | 24,305 | 17,872
Interest payable | 1,125 | 338
Interest Bearing Deposits [Member] | Reported Value Measurement [Member] |  |
Financial Liabilities: |  |
Total Deposits | 1,248,294 | 997,462
Interest Bearing Deposits [Member] | Fair Value [Member] |  |
Financial Liabilities: |  |
Total Deposits | 1,248,044 | 1,004,608
Interest Bearing Deposits [Member] | Level 3 [Member] |  |
Financial Liabilities: |  |
Total Deposits | 1,248,044 | 1,004,608
Non Interest Bearing Deposits [Member] | Reported Value Measurement [Member] |  |
Financial Liabilities: |  |
Total Deposits | 473,689 | 351,147
Non Interest Bearing Deposits [Member] | Fair Value [Member] |  |
Financial Liabilities: |  |
Total Deposits | 473,689 | 351,147
Non Interest Bearing Deposits [Member] | Level 2 [Member] |  |
Financial Liabilities: |  |
Total Deposits | 473,689 | 351,147
Time Deposits [Member] | Reported Value Measurement [Member] |  |
Financial Liabilities: |  |
Total Deposits | 471,479 | 247,553
Time Deposits [Member] | Fair Value [Member] |  |
Financial Liabilities: |  |
Total Deposits | 475,810 | 250,135
Time Deposits [Member] | Level 3 [Member] |  |
Financial Liabilities: |  |
Total Deposits | $ 475,810 | $ 250,135

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