Fair Value of Financial Instruments - Estimated Fair Values and Related Carrying or Notional Amounts (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financial Assets:
Securities - available-for-sale	$ 390,789	$ 429,931
Financial Liabilities:
Other borrowings	10,000	40,000
Subordinated notes, net of unamortized issuance costs	34,586	34,471
Reported Value Measurement [Member]
Financial Assets:
Cash and cash equivalents	84,409	180,823
Interest-bearing time deposits	4,442	10,913
Securities - available-for-sale	390,789	429,931
Other securities	9,799	8,162
Loans held for sale	827	7,714
Loans, net	2,336,074	1,841,177
Interest receivable	10,440	7,209
Financial Liabilities:
Total Deposits	2,468,864	2,193,462
Fed funds purchased and securities sold under agreement to repurchase	54,206	29,268
Federal Home Loan Bank advances	127,485	24,065
Other borrowings	10,000	40,000
Subordinated notes, net of unamortized issuance costs	34,586	34,471
Interest payable	1,739	1,125
Fair Value [Member]
Financial Assets:
Cash and cash equivalents	84,409	180,823
Interest-bearing time deposits	4,440	10,933
Securities - available-for-sale	390,789	429,931
Other securities	9,799	8,162
Loans held for sale	815	7,844
Loans, net	2,171,152	1,864,386
Interest receivable	10,440	7,209
Financial Liabilities:
Total Deposits	2,454,475	2,197,543
Fed funds purchased and securities sold under agreement to repurchase	54,206	29,268
Federal Home Loan Bank advances	125,761	24,305
Other borrowings	10,000	40,000
Subordinated notes, net of unamortized issuance costs	30,993	35,000
Interest payable	1,739	1,125
Level 1 [Member]
Financial Assets:
Cash and cash equivalents	84,409	180,823
Securities - available-for-sale	94,678	89,177
Financial Liabilities:
Total Deposits	532,794
Level 2 [Member]
Financial Assets:
Interest-bearing time deposits	4,440	10,933
Securities - available-for-sale	292,766	335,981
Financial Liabilities:
Total Deposits		473,689
Other borrowings	10,000	40,000
Subordinated notes, net of unamortized issuance costs	30,993	35,000
Level 3 [Member]
Financial Assets:
Securities - available-for-sale	3,345	4,773
Other securities	9,799	8,162
Loans held for sale	815	7,844
Loans, net	2,171,152	1,864,386
Interest receivable	10,440	7,209
Financial Liabilities:
Total Deposits	1,921,681	1,723,854
Fed funds purchased and securities sold under agreement to repurchase	54,206	29,268
Federal Home Loan Bank advances	125,761	24,305
Interest payable	1,739	1,125
Interest Bearing Deposits [Member] | Reported Value Measurement [Member]
Financial Liabilities:
Total Deposits	1,378,090	1,248,294
Interest Bearing Deposits [Member] | Fair Value [Member]
Financial Liabilities:
Total Deposits	1,377,944	1,248,044
Interest Bearing Deposits [Member] | Level 3 [Member]
Financial Liabilities:
Total Deposits	1,377,944	1,248,044
Non Interest Bearing Deposits [Member] | Reported Value Measurement [Member]
Financial Liabilities:
Total Deposits	532,794	473,689
Non Interest Bearing Deposits [Member] | Fair Value [Member]
Financial Liabilities:
Total Deposits	532,794	473,689
Non Interest Bearing Deposits [Member] | Level 1 [Member]
Financial Liabilities:
Total Deposits	532,794
Non Interest Bearing Deposits [Member] | Level 2 [Member]
Financial Liabilities:
Total Deposits		473,689
Time Deposits [Member] | Reported Value Measurement [Member]
Financial Liabilities:
Total Deposits	557,980	471,479
Time Deposits [Member] | Fair Value [Member]
Financial Liabilities:
Total Deposits	543,737	475,810
Time Deposits [Member] | Level 3 [Member]
Financial Liabilities:
Total Deposits	$ 543,737	$ 475,810