Fair Value Information - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) - Fair Value on Non-Recurring Basis [Member] - USD ($)
$ in Thousands

Fair Value Information - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) - Fair Value on Non-Recurring Basis [Member] - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Description of assets
Total assets		$ 256
Loans, Excluding PCI Loans [Member]
Description of assets
Total assets	$ 103
Loans, Excluding PCI Loans [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets		2
Loans, Excluding PCI Loans [Member] \| SBA [Member]
Description of assets
Total assets		0
Loans, Excluding PCI Loans [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	103	254
Loans, Excluding PCI Loans [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets		0
Level 1 [Member]
Description of assets
Total assets		0
Level 1 [Member] \| Loans, Excluding PCI Loans [Member]
Description of assets
Total assets	0
Level 1 [Member] \| Loans, Excluding PCI Loans [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets		0
Level 1 [Member] \| Loans, Excluding PCI Loans [Member] \| SBA [Member]
Description of assets
Total assets		0
Level 1 [Member] \| Loans, Excluding PCI Loans [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	0	0
Level 1 [Member] \| Loans, Excluding PCI Loans [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets	0	0
Level 2 [Member]
Description of assets
Total assets		0
Level 2 [Member] \| Loans, Excluding PCI Loans [Member]
Description of assets
Total assets	0
Level 2 [Member] \| Loans, Excluding PCI Loans [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets		0
Level 2 [Member] \| Loans, Excluding PCI Loans [Member] \| SBA [Member]
Description of assets
Total assets		0
Level 2 [Member] \| Loans, Excluding PCI Loans [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	0	0
Level 2 [Member] \| Loans, Excluding PCI Loans [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets	0	0
Level 3 [Member]
Description of assets
Total assets		21,754
Level 3 [Member] \| Loans, Excluding PCI Loans [Member]
Description of assets
Total assets	3,022
Level 3 [Member] \| Loans, Excluding PCI Loans [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets		12,614
Level 3 [Member] \| Loans, Excluding PCI Loans [Member] \| SBA [Member]
Description of assets
Total assets		24
Level 3 [Member] \| Loans, Excluding PCI Loans [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	2,979	8,953
Level 3 [Member] \| Loans, Excluding PCI Loans [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets	43	163
Carrying Value [Member]
Description of assets
Total assets		21,754
Carrying Value [Member] \| Loans, Excluding PCI Loans [Member]
Description of assets
Total assets	3,022
Carrying Value [Member] \| Loans, Excluding PCI Loans [Member] \| Commercial Real Estate [Member]
Description of assets
Total assets		12,614
Carrying Value [Member] \| Loans, Excluding PCI Loans [Member] \| SBA [Member]
Description of assets
Total assets		24
Carrying Value [Member] \| Loans, Excluding PCI Loans [Member] \| Commercial and Industrial [Member]
Description of assets
Total assets	2,979	8,953
Carrying Value [Member] \| Loans, Excluding PCI Loans [Member] \| Other Real Estate Owned [Member]
Description of assets
Total assets	$ 43	$ 163