v3.26.1
Fair Value Measurements - Carrying Value and Estimated Fair Value (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Financial instrument with off-balance sheet risk:    
Total financial instrument liabilities with off-balance-sheet risk $ 676,741 $ 686,436
Readily Available Market Prices    
Financial instrument assets:    
Cash and cash equivalents 56,079 42,114
Investment securities 264,428 255,527
Loans held for sale 0 0
Loans, net    
Agricultural 0 0
Commercial and financial 0 0
Real estate:    
Construction, 1 to 4 family residential 0 0
Construction, land development and commercial 0 0
Mortgage, farmland 0 0
Mortgage, 1 to 4 family first liens 0 0
Mortgage, 1 to 4 family junior liens 0 0
Mortgage, multi-family 0 0
Mortgage, commercial 0 0
Loans to individuals 0 0
Obligations of state and political subdivisions 0 0
Accrued interest receivable 0 0
Total financial instrument assets 320,507 297,641
Deposits    
Noninterest-bearing deposits 0 0
Interest-bearing deposits 0 0
Other short-term borrowings, including FHLB daily reset advances 0 0
Federal Home Loan Bank borrowings 0 0
Accrued interest payable 0 0
Total financial instrument liabilities 0 0
Observable Market Prices    
Financial instrument assets:    
Cash and cash equivalents 0 0
Investment securities 693,956 700,057
Loans held for sale 5,215 8,047
Loans, net    
Agricultural 0 0
Commercial and financial 0 0
Real estate:    
Construction, 1 to 4 family residential 0 0
Construction, land development and commercial 0 0
Mortgage, farmland 0 0
Mortgage, 1 to 4 family first liens 0 0
Mortgage, 1 to 4 family junior liens 0 0
Mortgage, multi-family 0 0
Mortgage, commercial 0 0
Loans to individuals 0 0
Obligations of state and political subdivisions 0 0
Accrued interest receivable 25,727 23,404
Total financial instrument assets 724,898 731,508
Deposits    
Noninterest-bearing deposits 615,648 596,230
Interest-bearing deposits 2,753,204 2,563,767
Other short-term borrowings, including FHLB daily reset advances 379,575 585,948
Federal Home Loan Bank borrowings 64,253 64,754
Accrued interest payable 3,250 3,453
Total financial instrument liabilities 3,815,930 3,814,152
Company Determined Market Prices    
Financial instrument assets:    
Cash and cash equivalents 0 0
Investment securities 0 0
Loans held for sale 0 0
Loans, net    
Agricultural 122,613 118,737
Commercial and financial 283,407 284,244
Real estate:    
Construction, 1 to 4 family residential 101,216 89,558
Construction, land development and commercial 258,234 246,410
Mortgage, farmland 266,430 268,568
Mortgage, 1 to 4 family first liens 1,191,868 1,193,847
Mortgage, 1 to 4 family junior liens 133,767 136,911
Mortgage, multi-family 480,460 477,170
Mortgage, commercial 550,103 549,177
Loans to individuals 25,654 27,613
Obligations of state and political subdivisions 41,747 41,393
Accrued interest receivable 0 0
Total financial instrument assets 3,455,499 3,433,628
Deposits    
Noninterest-bearing deposits 0 0
Interest-bearing deposits 0 0
Other short-term borrowings, including FHLB daily reset advances 0 0
Federal Home Loan Bank borrowings 0 0
Accrued interest payable 0 0
Total financial instrument liabilities 0 0
Carrying Amount    
Financial instrument assets:    
Cash and cash equivalents 56,079 42,114
Investment securities 958,384 955,584
Loans held for sale 5,215 8,047
Loans, net    
Agricultural 122,376 118,506
Commercial and financial 283,147 283,728
Real estate:    
Construction, 1 to 4 family residential 100,807 89,190
Construction, land development and commercial 255,521 245,127
Mortgage, farmland 271,555 274,312
Mortgage, 1 to 4 family first liens 1,235,134 1,241,209
Mortgage, 1 to 4 family junior liens 134,337 137,678
Mortgage, multi-family 493,034 491,937
Mortgage, commercial 558,021 555,322
Loans to individuals 26,344 27,937
Obligations of state and political subdivisions 41,842 41,873
Accrued interest receivable 25,727 23,404
Total financial instrument assets 4,567,523 4,535,968
Deposits    
Noninterest-bearing deposits 615,648 596,230
Interest-bearing deposits 2,983,970 2,771,605
Other short-term borrowings, including FHLB daily reset advances 380,187 586,882
Federal Home Loan Bank borrowings 64,083 64,333
Accrued interest payable 3,250 3,453
Total financial instrument liabilities 4,047,138 4,022,503
Financial instrument with off-balance sheet risk:    
Loan commitments 665,689 675,284
Letters of credit 11,052 11,152
Total financial instrument liabilities with off-balance-sheet risk 676,741 686,436
Estimated Fair Value    
Financial instrument assets:    
Cash and cash equivalents 56,079 42,114
Investment securities 958,384 955,584
Loans held for sale 5,215 8,047
Loans, net    
Agricultural 122,613 118,737
Commercial and financial 283,407 284,244
Real estate:    
Construction, 1 to 4 family residential 101,216 89,558
Construction, land development and commercial 258,234 246,410
Mortgage, farmland 266,430 268,568
Mortgage, 1 to 4 family first liens 1,191,868 1,193,847
Mortgage, 1 to 4 family junior liens 133,767 136,911
Mortgage, multi-family 480,460 477,170
Mortgage, commercial 550,103 549,177
Loans to individuals 25,654 27,613
Obligations of state and political subdivisions 41,747 41,393
Accrued interest receivable 25,727 23,404
Total financial instrument assets 4,500,904 4,462,777
Deposits    
Noninterest-bearing deposits 615,648 596,230
Interest-bearing deposits 2,753,204 2,563,767
Other short-term borrowings, including FHLB daily reset advances 379,575 585,948
Federal Home Loan Bank borrowings 64,253 64,754
Accrued interest payable 3,250 3,453
Total financial instrument liabilities $ 3,815,930 $ 3,814,152