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Investment securities (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Allowance for credit loss on available-for-sale debt securities | $ 0 | $ 0 |
Equity securities | 2,400,000 | 100,000 |
Credit loss to equity securities without readily determinable values | 0 | 0 | $ 0
Allowance for credit loss on held to maturity debt securities | 0 | 0 |
Gross gains (losses) realized upon sale | 0 |  |
Par value of available for sale securities sold |  | 65,600,000 | 45,500,000
Net gain on securities sold |  | 81,000 |
Net loss on securities sold |  |  | $ 2,000,000
Equity securities without readily determinable fair values | 5,080,000 |  |
Federal Home Loan Bank of Pittsburgh (FHLB) |  |  |
Equity securities without readily determinable fair values | 10,200,000 | $ 5,200,000 |
FNCB |  |  |
Proceeds from sales of investment securities available for sale | 241,300,000 |  |
Equity securities without readily determinable fair values | $ 4,300,000 |  |

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