Annual report [Section 13 and 15(d), not S-K Item 405]

LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Summary of Gross Loans Held for Investment by Years of Origination) (Details)

v3.25.4
LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Summary of Gross Loans Held for Investment by Years of Origination) (Details) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Financing Receivable, Recorded Investment [Line Items]      
Total $ 2,546,118,000 $ 2,651,550,000  
Current Period Gross Writeoffs, Total 6,920,000 9,382,000 $ 9,292,000
Commercial, Financial, Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 38,002,000 36,031,000  
2024 23,692,000 40,414,000  
2023 25,742,000 37,960,000  
2022 23,376,000 18,454,000  
2021 10,942,000 4,668,000  
Prior 8,956,000 9,814,000  
Revolving Loans 49,631,000 41,867,000  
Total 180,341,000 189,208,000  
Current Period Gross Writeoffs, 2025 0 9,000  
Current Period Gross Writeoffs, 2024 209,000 548,000  
Current Period Gross Writeoffs, 2023 114,000 500,000  
Current Period Gross Writeoffs, 2022 344,000 111,000  
Current Period Gross Writeoffs, 2021 70,000 160,000  
Current Period Gross Writeoffs, Prior 1,000 1,000  
Current Period Gross Writeoffs, Revolving 44,000 183,000  
Current Period Gross Writeoffs, Total 782,000 1,512,000 511,000
Real Estate - Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 76,850,000 106,703,000  
2024 39,024,000 73,615,000  
2023 4,388,000 31,150,000  
2022 17,123,000 53,000  
2021 53,000 0  
Prior 187,000 185,000  
Revolving Loans 9,295,000 8,288,000  
Total 146,920,000 219,994,000  
Current Period Gross Writeoffs, 2025 0 0  
Current Period Gross Writeoffs, 2024 0 0  
Current Period Gross Writeoffs, 2023 0 47,000  
Current Period Gross Writeoffs, 2022 0 0  
Current Period Gross Writeoffs, 2021 0 0  
Current Period Gross Writeoffs, Prior 0 0  
Current Period Gross Writeoffs, Revolving 0 0  
Current Period Gross Writeoffs, Total 0 47,000 0
Real Estate - Commercial Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 104,303,000 77,732,000  
2024 82,227,000 115,559,000  
2023 107,085,000 228,008,000  
2022 195,924,000 110,732,000  
2021 97,539,000 92,130,000  
Prior 158,228,000 127,979,000  
Revolving Loans 23,425,000 26,955,000  
Total 768,731,000 779,095,000  
Current Period Gross Writeoffs, 2025 0 0  
Current Period Gross Writeoffs, 2024 0 0  
Current Period Gross Writeoffs, 2023 0 0  
Current Period Gross Writeoffs, 2022 0 0  
Current Period Gross Writeoffs, 2021 0 0  
Current Period Gross Writeoffs, Prior 4,000 0  
Current Period Gross Writeoffs, Revolving 0 3,000  
Current Period Gross Writeoffs, Total 4,000 3,000 120,000
Real Estate - Residential [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 142,278,000 165,050,000  
2024 131,453,000 317,314,000  
2023 270,273,000 360,301,000  
2022 317,719,000 73,973,000  
2021 62,214,000 32,932,000  
Prior 90,693,000 80,373,000  
Revolving Loans 11,060,000 12,561,000  
Total 1,025,690,000 1,042,504,000  
Current Period Gross Writeoffs, 2025 0 0  
Current Period Gross Writeoffs, 2024 27,000 13,000  
Current Period Gross Writeoffs, 2023 59,000 0  
Current Period Gross Writeoffs, 2022 32,000 0  
Current Period Gross Writeoffs, 2021 0 0  
Current Period Gross Writeoffs, Prior 18,000 48,000  
Current Period Gross Writeoffs, Revolving 0 0  
Current Period Gross Writeoffs, Total 136,000 61,000 79,000
Real Estate - Home Equity [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 391,000 801,000  
2024 9,000 521,000  
2023 411,000 30,000  
2022 19,000 119,000  
2021 106,000 9,000  
Prior 587,000 821,000  
Revolving Loans 239,374,000 217,763,000  
Total 240,897,000 220,064,000  
Current Period Gross Writeoffs, 2025 0 0  
Current Period Gross Writeoffs, 2024 0 0  
Current Period Gross Writeoffs, 2023 0 0  
Current Period Gross Writeoffs, 2022 0 0  
Current Period Gross Writeoffs, 2021 0 0  
Current Period Gross Writeoffs, Prior 9,000 0  
Current Period Gross Writeoffs, Revolving 35,000 132,000  
Current Period Gross Writeoffs, Total 44,000 132,000 39,000
Real Estate - Home Equity [Member] | Performing [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 391,000 801,000  
2024 9,000 521,000  
2023 411,000 30,000  
2022 19,000 119,000  
2021 106,000 9,000  
Prior 587,000 821,000  
Revolving Loans 237,678,000 215,981,000  
Total 239,201,000 218,282,000  
Real Estate - Home Equity [Member] | Nonperforming [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 0 0  
2024 0 0  
2023 0 0  
2022 0 0  
2021 0 0  
Prior 0 0  
Revolving Loans 1,696,000 1,782,000  
Total 1,696,000 1,782,000  
Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 63,629,000 32,303,000  
2024 22,057,000 45,169,000  
2023 28,068,000 56,263,000  
2022 31,679,000 42,158,000  
2021 21,596,000 10,957,000  
Prior 5,195,000 4,187,000  
Revolving Loans 11,315,000 9,648,000  
Total 183,539,000 200,685,000  
Current Period Gross Writeoffs, 2025 2,789,000 2,562,000  
Current Period Gross Writeoffs, 2024 376,000 1,605,000  
Current Period Gross Writeoffs, 2023 1,003,000 2,088,000  
Current Period Gross Writeoffs, 2022 1,036,000 897,000  
Current Period Gross Writeoffs, 2021 454,000 237,000  
Current Period Gross Writeoffs, Prior 144,000 76,000  
Current Period Gross Writeoffs, Revolving 152,000 162,000  
Current Period Gross Writeoffs, Total 5,954,000 7,627,000 $ 8,543,000
Consumer [Member] | Performing [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 63,443,000 32,293,000  
2024 21,866,000 44,995,000  
2023 27,919,000 55,942,000  
2022 31,464,000 42,002,000  
2021 21,524,000 10,899,000  
Prior 5,164,000 4,116,000  
Revolving Loans 11,315,000 9,648,000  
Total 182,695,000 199,895,000  
Consumer [Member] | Nonperforming [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 186,000 10,000  
2024 191,000 174,000  
2023 149,000 321,000  
2022 215,000 156,000  
2021 72,000 58,000  
Prior 31,000 71,000  
Revolving Loans 0 0  
Total 844,000 790,000  
Pass [Member] | Commercial, Financial, Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 37,680,000 35,596,000  
2024 23,425,000 36,435,000  
2023 22,907,000 37,506,000  
2022 23,068,000 18,433,000  
2021 10,922,000 4,610,000  
Prior 8,740,000 9,743,000  
Revolving Loans 48,354,000 41,720,000  
Total 175,096,000 184,043,000  
Pass [Member] | Real Estate - Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 76,850,000 105,148,000  
2024 39,024,000 73,615,000  
2023 3,298,000 29,821,000  
2022 14,996,000 53,000  
2021 53,000 0  
Prior 187,000 185,000  
Revolving Loans 9,295,000 8,288,000  
Total 143,703,000 217,110,000  
Pass [Member] | Real Estate - Commercial Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 93,723,000 77,561,000  
2024 76,348,000 110,183,000  
2023 101,262,000 207,574,000  
2022 174,959,000 109,863,000  
2021 92,388,000 87,369,000  
Prior 152,307,000 122,272,000  
Revolving Loans 22,555,000 26,324,000  
Total 713,542,000 741,146,000  
Pass [Member] | Real Estate - Residential [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 142,278,000 165,050,000  
2024 130,895,000 316,521,000  
2023 269,844,000 358,851,000  
2022 316,402,000 71,423,000  
2021 59,950,000 31,169,000  
Prior 87,545,000 76,921,000  
Revolving Loans 10,521,000 11,872,000  
Total 1,017,435,000 1,031,807,000  
Special Mention [Member] | Commercial, Financial, Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 322,000 435,000  
2024 121,000 3,979,000  
2023 2,740,000 261,000  
2022 63,000 9,000  
2021 4,000 0  
Prior 180,000 0  
Revolving Loans 163,000 76,000  
Total 3,593,000 4,760,000  
Special Mention [Member] | Real Estate - Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 0 1,555,000  
2024 0 0  
2023 372,000 1,329,000  
2022 2,127,000 0  
2021 0 0  
Prior 0 0  
Revolving Loans 0 0  
Total 2,499,000 2,884,000  
Special Mention [Member] | Real Estate - Commercial Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 9,830,000 171,000  
2024 4,477,000 2,913,000  
2023 5,725,000 17,031,000  
2022 20,547,000 0  
2021 3,922,000 2,253,000  
Prior 4,074,000 4,402,000  
Revolving Loans 720,000 530,000  
Total 49,295,000 27,300,000  
Special Mention [Member] | Real Estate - Residential [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 0 0  
2024 0 265,000  
2023 0 0  
2022 116,000 1,104,000  
2021 954,000 468,000  
Prior 807,000 534,000  
Revolving Loans 378,000 521,000  
Total 2,255,000 2,892,000  
Substandard [Member] | Commercial, Financial, Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 0 0  
2024 146,000 0  
2023 95,000 193,000  
2022 245,000 12,000  
2021 16,000 58,000  
Prior 36,000 71,000  
Revolving Loans 1,114,000 71,000  
Total 1,652,000 405,000  
Substandard [Member] | Real Estate - Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 0    
2024 0    
2023 718,000    
2022 0    
2021 0    
Prior 0    
Revolving Loans 0    
Total 718,000    
Substandard [Member] | Real Estate - Commercial Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 750,000 0  
2024 1,402,000 2,463,000  
2023 98,000 3,403,000  
2022 418,000 869,000  
2021 1,229,000 2,508,000  
Prior 1,847,000 1,305,000  
Revolving Loans 150,000 101,000  
Total 5,894,000 10,649,000  
Substandard [Member] | Real Estate - Residential [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2025 0 0  
2024 558,000 528,000  
2023 429,000 1,450,000  
2022 1,201,000 1,446,000  
2021 1,310,000 1,295,000  
Prior 2,341,000 2,918,000  
Revolving Loans 161,000 168,000  
Total $ 6,000,000 $ 7,805,000