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Borrowed Funds (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Disclosure of Repurchase Agreements [Abstract]
Amount of line of credit with correspondent banks	$ 101,000,000
Credit facility with Federal Reserve Bank	319,000,000
Line of credit with correspondent banks and credit facility with Federal Reserve Of Boston	$ 0
Federal Home Loan Bank Advances
Interest rate, due in next twelve months	0.00%
Interest rate, due in year two	0.00%	0.00%
Interest rate, due in year three		0.00%
Interest rate, due in year four	0.00%	0.00%
Interest rate, due in year five and thereafter	2.89%	0.00%
Due in twelve months maturity	$ 0	$ 20,076,000
Due in year two maturity	0	0
Due in year three maturity	70,000,000	0
Due in year four maturity	0	0
Due in year five and thereafter	25,000,000	0
Total	95,000,000	20,076,000
Repurchase agreements for municipal and commercial customers	51,278,000	49,576,000
Total	$ 146,278,000	$ 69,652,000	$ 151,027,000	$ 230,620,000	$ 154,779,000	$ 82,993,000	$ 114,481,000	$ 83,881,000
Minimum
Disclosure of Repurchase Agreements [Abstract]
Range of repurchase agreements' maturity dates (days)	1 day
Federal Home Loan Bank Advances
Interest rate, due in next twelve months		0.00%
Interest rate, due in year three	3.97%
Interest rate, Repurchase agreements for municipal and commercial customers	0.05%	0.05%
Maximum
Disclosure of Repurchase Agreements [Abstract]
Range of repurchase agreements' maturity dates (days)	3 days
Federal Home Loan Bank Advances
Interest rate, due in next twelve months		5.54%
Interest rate, due in year three	4.12%
Interest rate, Repurchase agreements for municipal and commercial customers	5.00%	5.05%

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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) maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of advance from Federal Home Loan Bank (FHLBank) maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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