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Loans, net and allowance for credit losses -Purchased credit deteriorated (PCD) loans (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 01, 2024 | Sep. 30, 2024 | Sep. 30, 2024
Financial Asset Acquired with Credit Deterioration [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable |  |  |
PCD Allowance for Credit Losses at Acquisition |  | $ 1,841 | $ 1,841
Financial Asset Acquired with Credit Deterioration [Member] | FNCB |  |  |
Accounts, Notes, Loans and Financing Receivable |  |  |
Unpaid Principal Balance | $ 106,321 |  |
Non-credit Discount at Acquisition | (6,524) |  |
PCD Allowance for Credit Losses at Acquisition | 1,841 |  |
Fair Value of PCD Loans at Acquisition | 101,638 |  |
PCD accruing | FNCB |  |  |
Accounts, Notes, Loans and Financing Receivable |  |  |
Unpaid Principal Balance | 95,851 |  |
Non-credit Discount at Acquisition | (3,626) |  |
PCD Allowance for Credit Losses at Acquisition | 1,841 |  |
Fair Value of PCD Loans at Acquisition | 94,066 |  |
PCD nonaccruing | FNCB |  |  |
Accounts, Notes, Loans and Financing Receivable |  |  |
Unpaid Principal Balance | 10,470 |  |
Non-credit Discount at Acquisition | (2,898) |  |
Fair Value of PCD Loans at Acquisition | $ 7,572 |  |

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