Note 5 - Loans - Analysis of Allowance for Loans Losses by Portfolio Segment (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
|
| Balance | $ 181,853 | $ 169,959 | $ 171,683 | $ 164,458 | $ 164,458 |
| Charge-offs | (9,165) | (9,350) | (22,587) | (22,942) | (31,166) |
| Recoveries | 1,424 | 288 | 2,759 | 1,503 | |
| Provision for credit losses on loans | 14,898 | 9,338 | 37,155 | 27,216 | |
| Balance | 189,010 | 170,235 | 189,010 | 170,235 | 171,683 |
| Commercial Real Estate Portfolio Segment [Member] | |||||
| Charge-offs | (14,227) | (24,904) | |||
| Commercial Real Estate Portfolio Segment [Member] | Commercial, Financial, and Agricultural Loans [Member] | |||||
| Balance | 57,245 | 53,022 | 63,620 | 55,330 | 55,330 |
| Charge-offs | (1,862) | (7,947) | (14,227) | (17,209) | |
| Recoveries | 1,398 | 237 | 2,243 | 1,367 | |
| Provision for credit losses on loans | 5,953 | 12,785 | 11,098 | 18,609 | |
| Balance | 62,734 | 58,097 | 62,734 | 58,097 | 63,620 |
| Real Estate Portfolio Segment[Member] | |||||
| Balance | 88,416 | 68,060 | 82,543 | 67,726 | 67,726 |
| Charge-offs | (207) | (1,294) | (303) | (5,445) | |
| Recoveries | 3 | 0 | 399 | 1 | |
| Provision for credit losses on loans | (565) | 217 | 5,008 | 4,701 | |
| Balance | 87,647 | 66,983 | 87,647 | 66,983 | 82,543 |
| Real Estate Portfolio Segment[Member] | Construction Loans [Member] | |||||
| Balance | 33,427 | 46,423 | 22,432 | 38,597 | 38,597 |
| Charge-offs | (6,959) | 0 | (7,670) | (46) | (46) |
| Recoveries | 0 | 30 | 0 | 30 | |
| Provision for credit losses on loans | 10,689 | (4,373) | 22,395 | 3,499 | |
| Balance | 37,157 | 42,080 | 37,157 | 42,080 | 22,432 |
| Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] | |||||
| Balance | 18,011 | 20,927 | 18,833 | 22,302 | 22,302 |
| Charge-offs | 0 | (688) | 0 | (4,038) | (4,038) |
| Recoveries | 0 | 0 | 390 | 1 | |
| Provision for credit losses on loans | 864 | (62) | (348) | 1,912 | |
| Balance | 18,875 | 20,177 | 18,875 | 20,177 | 18,833 |
| Real Estate Portfolio Segment[Member] | One to Four Family [Member] | |||||
| Balance | 24,898 | 14,944 | 24,739 | 14,096 | 14,096 |
| Charge-offs | 0 | (235) | (96) | (286) | (303) |
| Recoveries | 3 | 0 | 7 | 0 | |
| Provision for credit losses on loans | (2,863) | 859 | (2,612) | 1,758 | |
| Balance | 22,038 | 15,568 | 22,038 | 15,568 | 24,739 |
| Real Estate Portfolio Segment[Member] | Non-owner Occupied Commercial [Member] | |||||
| Balance | 45,507 | 32,189 | 38,971 | 31,328 | 31,328 |
| Charge-offs | (207) | (371) | (207) | (1,121) | (1,168) |
| Recoveries | 0 | 0 | 2 | 0 | |
| Provision for credit losses on loans | 1,434 | (580) | 7,968 | 1,031 | |
| Balance | 46,734 | 31,238 | 46,734 | 31,238 | 38,971 |
| Consumer Portfolio Segment [Member] | |||||
| Balance | 2,765 | 2,454 | 3,088 | 2,805 | 2,805 |
| Charge-offs | (137) | (109) | (387) | (242) | (707) |
| Recoveries | 23 | 21 | 117 | 105 | |
| Provision for credit losses on loans | (1,179) | 709 | (1,346) | 407 | |
| Balance | $ 1,472 | $ 3,075 | $ 1,472 | $ 3,075 | $ 3,088 |