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Loans - Narrative (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) loan | Dec. 31, 2023 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Net deferred loan costs included in loan balances | $ 12,457 | $ 11,479
Loans used to collateralize borrowings from the Federal Home Loan Bank of Boston | 626,851 | 561,574
Loans to directors, officers and employees | 54,997 | 54,425
Interest income which would have been recognized if interest had been accrued | 172 | 142
Loans more than 90 days past due accruing interest | $ 1,020 | $ 429
Number of mortgage loans in the process of foreclosure | loan | 3 | 5
Mortgage loans in the process of foreclosure | $ 192 | $ 400
Interest rate swap agreements | Designated as Hedging Instrument |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan adjustments | (560) | (1,769)
Interest rate swap agreements | Fair Value Hedges | Designated as Hedging Instrument |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan adjustments | (758) | (2,149)
Loans pledged as collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Net loans | $ 392,562 | $ 320,083

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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477734/942-470-50-3 + Details
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