Fair Value - Summary of Estimated Fair Values and Related Carrying Amounts and Valuation Level of Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financial Assets
Cash and due from banks	$ 124,607	$ 110,491	[1]
Securities available for sale	307,427	321,081	[1]
Restricted equity investments	18,236	18,621	[1]
Other equity investments	4,354	12,905	[1]
Other investments	21,099	29,467	[1]
Loans held for sale	54,377	46,337	[1]
Financial Liabilities
Noninterest-bearing demand	470,128	506,248	[1]
Savings	106,619	117,923	[1]
Time	979,222	892,325	[1]
FHLB borrowings	202,900	210,000	[1]
Subordinated notes, net	39,822	39,855	[1]
Carrying Value [Member]
Financial Assets
Cash and due from banks	124,607	110,491
Restricted cash	5,924	10,660
Federal funds sold	5,219	4,451
Securities available for sale	307,427	321,081
Restricted equity investments	18,236	18,621
Other equity investments	4,354	12,905
Other investments	21,099	29,467
Loans held for sale	54,377	46,337
Loans held for investment, net	2,231,243	2,395,054
Accrued interest receivable	14,172	14,967
Bank owned life insurance	42,446	48,453
MSR assets	29,862	27,114
Financial Liabilities
Noninterest-bearing demand	470,128	506,248
Interest-bearing demand and money market	769,870	1,049,536
Savings	106,619	117,923
Time	979,222	892,325
FHLB borrowings	202,900	210,000
FRB borrowings		65,000
Subordinated notes, net	39,822	39,855
Fair Value [Member]
Financial Assets
Cash and due from banks	124,607	110,491
Restricted cash	5,924	10,660
Federal funds sold	5,219	4,451
Securities available for sale	307,427	321,081
Restricted equity investments	18,236	18,621
Other equity investments	4,354	12,905
Other investments	21,099	29,467
Loans held for sale	54,377	46,337
Loans held for investment, net	2,139,734	2,316,113
Accrued interest receivable	14,172	14,967
Bank owned life insurance	42,446	48,453
MSR assets	29,862	27,114
Financial Liabilities
Noninterest-bearing demand	470,128	506,248
Interest-bearing demand and money market	769,870	1,049,536
Savings	106,619	117,923
Time	974,348	892,439
FHLB borrowings	207,099	211,799
FRB borrowings		65,000
Subordinated notes, net	38,254	37,803
Level 1 [Member]
Financial Assets
Cash and due from banks	124,607	110,491
Restricted cash	5,924	10,660
Federal funds sold	5,219	4,451
Financial Liabilities
Noninterest-bearing demand	470,128	506,248
Level 2 [Member]
Financial Assets
Securities available for sale	306,677	320,331
Restricted equity investments	18,236	18,621
Other equity investments	1,348	12,905
Loans held for sale	39,990	46,337
Accrued interest receivable	14,172	14,967
Bank owned life insurance	42,446	48,453
Financial Liabilities
Interest-bearing demand and money market	769,870	1,049,536
Savings	106,619	117,923
FHLB borrowings	207,099	211,799
FRB borrowings		65,000
Level 3 [Member]
Financial Assets
Securities available for sale	750	750
Restricted equity investments	0
Other equity investments	3,006
Other investments	21,099	29,467
Loans held for sale	14,387
Loans held for investment, net	2,139,734	2,316,113
Accrued interest receivable	0
Bank owned life insurance	0
MSR assets	29,862	27,114
Financial Liabilities
Time	974,348	892,439
Subordinated notes, net	$ 38,254	$ 37,803

[1] Derived from audited December 31, 2023 Consolidated Financial Statements.