Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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Amount of advance from Federal Home Loan Bank (FHLBank).

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Rate of interest applicable on advance from Federal Home Loan Bank (FHLBank).

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Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Borrowings - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025	Sep. 09, 2025	Jan. 16, 2025	Jan. 07, 2025
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Banks unused remaining borrowing capacity	$ 98,200	$ 96,600
Advances through FLHB	44,844	52,308
Federal home loan bank maximum borrowing capacity	3,000	3,000
Fed Funds Borrowing [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Fed funds borrowing capacity	2,000	2,000
Borrower-In-Custody of Collateral Program [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Banks unused remaining borrowing capacity	36,700	34,100
Collateral pledged			$ 71,700		$ 65,000
Fed funds borrowing capacity				$ 38,500
New England Program [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Advances through FLHB	$ 2,800	$ 2,300
Interest rate	0.00%	0.00%
FHLB Callable Date September 8, 2026 [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
FHLB loan borrowed	$ 25,000	$ 25,000
Interest rate	4.38%	4.38%