Fair Value Disclosures - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 01, 2021
Assets:
Securities, available-for-sale, fair value	$ 357,361	$ 351,553
Investments in equity securities	2,506	3,293
Fair Value Measured on Recurring Basis [Member]
Assets:
Securities, available-for-sale, fair value	357,361	351,553
Investments in equity securities	2,506	3,293
Total assets	376,746	367,200
Liabilities:
Total liabilities	702	7,616
Fair Value Measured on Recurring Basis [Member] | Contingent Consideration Liability [Member]
Liabilities:
Derivative liabilities	635	1,224	$ 1,200
Fair Value Measured on Recurring Basis [Member] | Interest Rate Swap [Member]
Liabilities:
Derivative liabilities		5,779
Fair Value Measured on Recurring Basis [Member] | Credit Risk Contract [Member]
Liabilities:
Derivative liabilities	67	186
Fair Value Measured on Recurring Basis [Member] | Forward Loan Sale Commitments [Member]
Liabilities:
Derivative liabilities		427
Fair Value Measured on Recurring Basis [Member] | State and Political Subdivisions [Member]
Assets:
Securities, available-for-sale, fair value	1,295	2,301
Fair Value Measured on Recurring Basis [Member] | Residential Mortgage-Backed Securities [Member]
Assets:
Securities, available-for-sale, fair value	283,381	264,552
Fair Value Measured on Recurring Basis [Member] | Collateralized Mortgage Obligations [Member]
Assets:
Securities, available-for-sale, fair value	1,685	2,001
Fair Value Measured on Recurring Basis [Member] | Corporate Bonds [Member]
Assets:
Securities, available-for-sale, fair value	71,000	82,699
Fair Value Measured on Recurring Basis [Member] | Equity Securities [Member]
Assets:
Investments in equity securities		764
Fair Value Measured on Recurring Basis [Member] | Money Market Mutual Funds [Member]
Assets:
Investments in equity securities	2,506	2,529
Fair Value Measured on Recurring Basis [Member] | Loans Held for Sale
Assets:
Loans held for sale	16,653	11,637
Fair Value Measured on Recurring Basis [Member] | Interest Rate Locks with Customers [Member]
Assets:
Derivative assets	214	717
Fair Value Measured on Recurring Basis [Member] | Forward Loan Sale Commitments [Member]
Assets:
Derivative assets	12
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Investments in equity securities	2,506	3,293
Total assets	2,506	3,293
Liabilities:
Total liabilities	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Contingent Consideration Liability [Member]
Liabilities:
Derivative liabilities	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Interest Rate Swap [Member]
Liabilities:
Derivative liabilities		0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Credit Risk Contract [Member]
Liabilities:
Derivative liabilities	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Forward Loan Sale Commitments [Member]
Liabilities:
Derivative liabilities	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | State and Political Subdivisions [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Residential Mortgage-Backed Securities [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Collateralized Mortgage Obligations [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Corporate Bonds [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Equity Securities [Member]
Assets:
Investments in equity securities		764
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Money Market Mutual Funds [Member]
Assets:
Investments in equity securities	2,506	2,529
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Loans Held for Sale
Assets:
Loans held for sale	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Interest Rate Locks with Customers [Member]
Assets:
Derivative assets	0	0
Fair Value Measured on Recurring Basis [Member] | Level 1 [Member] | Forward Loan Sale Commitments [Member]
Assets:
Derivative assets	0
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member]
Assets:
Securities, available-for-sale, fair value	357,361	351,553
Investments in equity securities	0	0
Total assets	374,240	363,907
Liabilities:
Total liabilities	0	6,206
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Contingent Consideration Liability [Member]
Liabilities:
Derivative liabilities	0	0
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Interest Rate Swap [Member]
Liabilities:
Derivative liabilities		5,779
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Credit Risk Contract [Member]
Liabilities:
Derivative liabilities	0	0
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Forward Loan Sale Commitments [Member]
Liabilities:
Derivative liabilities		427
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | State and Political Subdivisions [Member]
Assets:
Securities, available-for-sale, fair value	1,295	2,301
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Residential Mortgage-Backed Securities [Member]
Assets:
Securities, available-for-sale, fair value	283,381	264,552
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Collateralized Mortgage Obligations [Member]
Assets:
Securities, available-for-sale, fair value	1,685	2,001
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Corporate Bonds [Member]
Assets:
Securities, available-for-sale, fair value	71,000	82,699
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Equity Securities [Member]
Assets:
Investments in equity securities		0
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Money Market Mutual Funds [Member]
Assets:
Investments in equity securities	0	0
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Loans Held for Sale
Assets:
Loans held for sale	16,653	11,637
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Interest Rate Locks with Customers [Member]
Assets:
Derivative assets	214	717
Fair Value Measured on Recurring Basis [Member] | Level 2 [Member] | Forward Loan Sale Commitments [Member]
Assets:
Derivative assets	12
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Investments in equity securities	0	0
Total assets	0	0
Liabilities:
Total liabilities	702	1,410
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Contingent Consideration Liability [Member]
Liabilities:
Derivative liabilities	635	1,224
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Interest Rate Swap [Member]
Liabilities:
Derivative liabilities		0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Credit Risk Contract [Member]
Liabilities:
Derivative liabilities	67	186
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Forward Loan Sale Commitments [Member]
Liabilities:
Derivative liabilities		0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | State and Political Subdivisions [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Residential Mortgage-Backed Securities [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Collateralized Mortgage Obligations [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Corporate Bonds [Member]
Assets:
Securities, available-for-sale, fair value	0	0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Equity Securities [Member]
Assets:
Investments in equity securities		0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Money Market Mutual Funds [Member]
Assets:
Investments in equity securities	0	0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Loans Held for Sale
Assets:
Loans held for sale	0	0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Interest Rate Locks with Customers [Member]
Assets:
Derivative assets	0	$ 0
Fair Value Measured on Recurring Basis [Member] | Level 3 [Member] | Forward Loan Sale Commitments [Member]
Assets:
Derivative assets	$ 0