LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Activity in Allowance for Credit Losses) (Details) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
|
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | |||||
| Beginning Balance | $ 31,007,000 | $ 29,862,000 | $ 31,001,000 | $ 29,251,000 | $ 29,251,000 |
| Provision for Credit Losses | (129,000) | 1,550,000 | 1,410,000 | 3,351,000 | |
| Charge-Offs | (2,136,000) | (1,968,000) | (5,684,000) | (5,077,000) | |
| Recoveries | 1,627,000 | 758,000 | 3,642,000 | 2,677,000 | |
| Net (Charge-Offs) Recoveries | (509,000) | (1,210,000) | (2,042,000) | (2,400,000) | |
| Ending Balance | 30,369,000 | 30,202,000 | 30,369,000 | 30,202,000 | 31,001,000 |
| Commercial, Financial and Agricultural [Member] | |||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | |||||
| Beginning Balance | 1,828,000 | 1,425,000 | 1,751,000 | 1,514,000 | 1,514,000 |
| Provision for Credit Losses | (25,000) | 370,000 | 790,000 | 331,000 | |
| Charge-Offs | (251,000) | (373,000) | (1,128,000) | (615,000) | (782,000) |
| Recoveries | 282,000 | 95,000 | 421,000 | 287,000 | |
| Net (Charge-Offs) Recoveries | 31,000 | (278,000) | (707,000) | (328,000) | |
| Ending Balance | 1,834,000 | 1,517,000 | 1,834,000 | 1,517,000 | 1,751,000 |
| Real Estate - Construction [Member] | |||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | |||||
| Beginning Balance | 1,282,000 | 1,811,000 | 1,681,000 | 2,384,000 | 2,384,000 |
| Provision for Credit Losses | 179,000 | (352,000) | (220,000) | (925,000) | |
| Charge-Offs | 0 | 0 | 0 | 0 | |
| Recoveries | 0 | 0 | 0 | 0 | |
| Net (Charge-Offs) Recoveries | 0 | 0 | 0 | 0 | |
| Ending Balance | 1,461,000 | 1,459,000 | 1,461,000 | 1,459,000 | 1,681,000 |
| Real Estate - Commercial Mortgage [Member] | |||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | |||||
| Beginning Balance | 7,540,000 | 6,256,000 | 6,859,000 | 5,867,000 | 5,867,000 |
| Provision for Credit Losses | (241,000) | 268,000 | 349,000 | 648,000 | |
| Charge-Offs | 0 | 0 | 0 | 0 | (4,000) |
| Recoveries | 7,000 | 8,000 | 98,000 | 17,000 | |
| Net (Charge-Offs) Recoveries | 7,000 | 8,000 | 98,000 | 17,000 | |
| Ending Balance | 7,306,000 | 6,532,000 | 7,306,000 | 6,532,000 | 6,859,000 |
| Real Estate - Residential [Member] | |||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | |||||
| Beginning Balance | 14,877,000 | 15,264,000 | 15,317,000 | 14,568,000 | 14,568,000 |
| Provision for Credit Losses | (837,000) | 164,000 | (1,343,000) | 733,000 | |
| Charge-Offs | (9,000) | (12,000) | (47,000) | (69,000) | (136,000) |
| Recoveries | 163,000 | 13,000 | 267,000 | 197,000 | |
| Net (Charge-Offs) Recoveries | 154,000 | 1,000 | 220,000 | 128,000 | |
| Ending Balance | 14,194,000 | 15,429,000 | 14,194,000 | 15,429,000 | 15,317,000 |
| Real Estate - Home Equity [Member] | |||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | |||||
| Beginning Balance | 2,467,000 | 2,014,000 | 2,368,000 | 1,952,000 | 1,952,000 |
| Provision for Credit Losses | (52,000) | 200,000 | 46,000 | 235,000 | |
| Charge-Offs | 7,000 | (10,000) | (6,000) | (34,000) | (44,000) |
| Recoveries | 4,000 | 10,000 | 18,000 | 61,000 | |
| Net (Charge-Offs) Recoveries | 11,000 | 0 | 12,000 | 27,000 | |
| Ending Balance | 2,426,000 | 2,214,000 | 2,426,000 | 2,214,000 | 2,368,000 |
| Consumer [Member] | |||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | |||||
| Beginning Balance | 3,013,000 | 3,092,000 | 3,025,000 | 2,966,000 | 2,966,000 |
| Provision for Credit Losses | 847,000 | 900,000 | 1,788,000 | 2,329,000 | |
| Charge-Offs | (1,883,000) | (1,573,000) | (4,503,000) | (4,359,000) | (5,954,000) |
| Recoveries | 1,171,000 | 632,000 | 2,838,000 | 2,115,000 | |
| Net (Charge-Offs) Recoveries | (712,000) | (941,000) | (1,665,000) | (2,244,000) | |
| Ending Balance | $ 3,148,000 | $ 3,051,000 | $ 3,148,000 | $ 3,051,000 | $ 3,025,000 |