| Schedule of carrying amount and estimated fair value of financial instruments |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (dollars in thousands) | | | | | Fair Value Measurement Using | | June 30, 2026 | Carrying Amount | | Estimated Fair Value | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Financial assets: | | | | | | | | | | | Cash and due from financial institutions | $ | 96,678 | | | $ | 96,678 | | | $ | 96,678 | | | $ | — | | | $ | — | | | Interest-bearing deposits in other financial institutions | 286,593 | | | 286,593 | | | 286,593 | | | — | | | — | | | Investment securities | 1,380,593 | | | 1,310,306 | | | 60,136 | | | 1,243,671 | | | 6,499 | | | Loans held for sale | 2,364 | | | 2,364 | | | — | | | 2,364 | | | — | | | Loans | 5,308,322 | | | 5,014,807 | | | — | | | — | | | 5,014,807 | | | Mortgage servicing rights | 8,364 | | | 11,467 | | | — | | | — | | | 11,467 | | | | | | | | | | | | | | | | | | | | | | | Accrued interest receivable | 23,419 | | | 23,419 | | | 616 | | | 4,747 | | | 18,056 | | | | | | | | | | | | | Financial liabilities: | | | | | | | | | | | Deposits: | | | | | | | | | | | Noninterest-bearing demand | 1,917,502 | | | 1,917,502 | | | 1,917,502 | | | — | | | — | | | Interest-bearing demand and savings and money market | 3,784,405 | | | 3,784,405 | | | 3,784,405 | | | — | | | — | | | Time | 993,847 | | | 987,696 | | | — | | | — | | | 987,696 | | | | | | | | | | | | | Long-term debt | 76,547 | | | 75,351 | | | — | | | — | | | 75,351 | | | Accrued interest payable | 6,044 | | | 6,044 | | | 80 | | | — | | | 5,964 | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (dollars in thousands) | | | | | | | Fair Value Measurement Using | | June 30, 2026 | Notional Amount | | Carrying Amount | | Estimated Fair Value | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Off-balance sheet financial instruments: | | | | | | | | | | | | | Commitments to extend credit | $ | 1,350,744 | | | $ | — | | | $ | 1,105 | | | $ | — | | | $ | 1,105 | | | $ | — | | | Standby letters of credit and financial guarantees written | 2,835 | | | — | | | 43 | | | — | | | 43 | | | — | | | | | | | | | | | | | | | Derivatives: | | | | | | | | | | | | | | | | | | | | | | | | | Forward sale commitments | 1,714 | | | (5) | | | (5) | | | — | | | (5) | | | — | | | Risk participation agreements | 51,986 | | | — | | | — | | | — | | | — | | | — | | | Back-to-back swap agreements: | | | | | | | | | | | | | Assets | 63,772 | | | 2,878 | | | 2,878 | | | — | | | 2,878 | | | — | | | Liabilities | (63,772) | | | (2,878) | | | (2,878) | | | — | | | (2,878) | | | — | | | Interest rate swap agreements | 114,580 | | | 5,242 | | | 5,242 | | | — | | | 5,242 | | | — | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (dollars in thousands) | | | | | Fair Value Measurement Using | | December 31, 2025 | Carrying Amount | | Estimated Fair Value | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Financial assets: | | | | | | | | | | | Cash and due from financial institutions | $ | 88,200 | | | $ | 88,200 | | | $ | 88,200 | | | $ | — | | | $ | — | | | Interest-bearing deposits in other financial institutions | 290,453 | | | 290,453 | | | 290,453 | | | — | | | — | | | Investment securities | 1,310,603 | | | 1,244,057 | | | 61,291 | | | 1,176,050 | | | 6,716 | | | Loans held for sale | 1,084 | | | 1,084 | | | — | | | 1,084 | | | — | | | Loans | 5,289,096 | | | 5,016,971 | | | — | | | — | | | 5,016,971 | | | Mortgage servicing rights | 8,672 | | | 11,301 | | | — | | | — | | | 11,301 | | | | | | | | | | | | | | | | | | | | | | | Accrued interest receivable | 23,559 | | | 23,559 | | | 651 | | | 4,075 | | | 18,833 | | | | | | | | | | | | | Financial liabilities: | | | | | | | | | | | Deposits: | | | | | | | | | | | Noninterest-bearing demand | 1,891,198 | | | 1,891,198 | | | 1,891,198 | | | — | | | — | | | Interest-bearing demand and savings and money market | 3,734,629 | | | 3,734,629 | | | 3,734,629 | | | — | | | — | | | Time | 983,937 | | | 978,868 | | | — | | | — | | | 978,868 | | | | | | | | | | | | | Long-term debt | 76,547 | | | 73,579 | | | — | | | — | | | 73,579 | | | Accrued interest payable | 7,068 | | | 7,068 | | | 102 | | | — | | | 6,966 | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (dollars in thousands) | | | | | | | Fair Value Measurement Using | | December 31, 2025 | Notional Amount | | Carrying Amount | | Estimated Fair Value | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Off-balance sheet financial instruments: | | | | | | | | | | | | | Commitments to extend credit | $ | 1,337,099 | | | $ | — | | | $ | 1,063 | | | $ | — | | | $ | 1,063 | | | $ | — | | | Standby letters of credit and financial guarantees written | 2,624 | | | — | | | 39 | | | — | | | 39 | | | — | | | | | | | | | | | | | | | Derivatives: | | | | | | | | | | | | | | | | | | | | | | | | | Forward sale commitments | 1,095 | | | (4) | | | (4) | | | — | | | (4) | | | — | | | Risk participation agreements | 52,435 | | | (3) | | | (3) | | | — | | | (3) | | | — | | | Back-to-back swap agreements: | | | | | | | | | | | | | Assets | 60,660 | | | 3,045 | | | 3,045 | | | — | | | 3,045 | | | — | | | Liabilities | (60,660) | | | (3,045) | | | (3,045) | | | — | | | (3,045) | | | — | | | Interest rate swap agreements | 114,580 | | | 4,163 | | | 4,163 | | | — | | | 4,163 | | | — | | | | | | | | | | | | | |
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| Schedule of balances of assets and liabilities measured at fair value on a recurring basis |
The following tables present the fair value of financial assets and liabilities measured on a recurring basis as of the dates presented: | | | | | | | | | | | | | | | | | | | | | | | | | | | | (dollars in thousands) | | | | Fair Value at Reporting Date Using | | June 30, 2026 | | Fair Value | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Available-for-sale securities: | | | | | | | | | | Debt securities: | | | | | | | | | | States and political subdivisions | | $ | 115,818 | | | $ | — | | | $ | 109,980 | | | $ | 5,838 | | | Corporate securities | | 9,976 | | | | | 9,976 | | | — | | | U.S. Treasury and other government-sponsored entities and agencies | | 95,082 | | | 60,136 | | | 34,946 | | | — | | | Collateralized loan obligations | | 103,504 | | | — | | | 103,504 | | | — | | | Mortgage-backed securities: | | | | | | | | | | Residential - U.S. government-sponsored entities and agencies | | 429,954 | | | — | | | 429,954 | | | — | | | Residential - Non-government agencies | | 14,464 | | | — | | | 13,803 | | | 661 | | | Commercial - U.S. government-sponsored entities and agencies | | 66,580 | | | — | | | 66,580 | | | — | | | | | | | | | | | | | | | | | | | | | Total available-for-sale investment securities | | 835,378 | | | 60,136 | | | 768,743 | | | 6,499 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Derivatives: | | | | | | | | | | | | | | | | | | | Forward sale commitments | | (5) | | | — | | | (5) | | | — | | | | | | | | | | | | Back-to-back swap agreements: | | | | | | | | | | Assets | | 2,878 | | | — | | | 2,878 | | | — | | | Liabilities | | (2,878) | | | — | | | (2,878) | | | — | | | Interest rate swap agreements | | 5,242 | | | — | | | 5,242 | | | — | | | Total derivatives | | 5,237 | | | — | | | 5,237 | | | — | | | Total | | $ | 840,615 | | | $ | 60,136 | | | $ | 773,980 | | | $ | 6,499 | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | (dollars in thousands) | | | | Fair Value at Reporting Date Using | | December 31, 2025 | | Fair Value | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Available-for-sale securities: | | | | | | | | | | Debt securities: | | | | | | | | | | States and political subdivisions | | $ | 117,041 | | | $ | — | | | $ | 110,993 | | | $ | 6,048 | | | | | | | | | | | | U.S. Treasury and other government-sponsored entities and agencies | | 100,025 | | | 61,291 | | | 38,734 | | | — | | | Collateralized loan obligations | | 40,827 | | | — | | | 40,827 | | | — | | | Mortgage-backed securities: | | | | | | | | | | Residential - U.S. government-sponsored entities and agencies | | 407,053 | | | — | | | 407,053 | | | — | | | Residential - Non-government agencies | | 15,363 | | | — | | | 14,695 | | | 668 | | | Commercial - U.S. government-sponsored entities and agencies | | 67,903 | | | — | | | 67,903 | | | — | | | | | | | | | | | | | | | | | | | | | Total available-for-sale investment securities | | 748,212 | | | 61,291 | | | 680,205 | | | 6,716 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Derivatives: | | | | | | | | | | | | | | | | | | | Forward sale commitments | | (4) | | | — | | | (4) | | | — | | | Risk participation agreements | | (3) | | | — | | | (3) | | | — | | | Back-to-back swap agreements: | | | | | | | | — | | | Assets | | 3,045 | | | — | | | 3,045 | | | — | | | Liabilities | | (3,045) | | | — | | | (3,045) | | | — | | | Interest rate swap agreements | | 4,163 | | | — | | | 4,163 | | | — | | | Total derivatives | | 4,156 | | | — | | | 4,156 | | | — | | | Total | | $ | 752,368 | | | $ | 61,291 | | | $ | 684,361 | | | $ | 6,716 | |
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