v3.26.1
Loans and Allowance for Credit Losses - Allowance For Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance $ 56,601 $ 52,950 $ 58,204 $ 50,940 $ 50,940
Charge-offs (723) (960) (2,189) (2,693) (6,989)
Recoveries 1,391 923 2,159 1,596  
Credit loss expense (benefit) (2,348) 1,107 (3,253) 4,177  
Ending balance 54,921 54,020 54,921 54,020 58,204
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 4,340 3,700 4,501 2,900 2,900
Credit loss (benefit) expense 890 30 729 830  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 5,230 3,730 5,230 3,730 4,501
Agricultural          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 487 783 418 674 674
Charge-offs (4) 0 (25) (35) (39)
Recoveries 14 44 31 150  
Credit loss expense (benefit) (141) (63) (68) (25)  
Ending balance 356 764 356 764 418
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 448 148 88 147 147
Credit loss (benefit) expense (358) 22 2 23  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 90 170 90 170 88
Commercial and financial          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 10,862 10,901 11,890 10,217 10,217
Charge-offs (158) (302) (435) (553) (2,128)
Recoveries 438 433 760 681  
Credit loss expense (benefit) (979) (356) (2,052) 331  
Ending balance 10,163 10,676 10,163 10,676 11,890
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 1,759 2,319 2,376 1,753 1,753
Credit loss (benefit) expense 341 (112) (276) 454  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 2,100 2,207 2,100 2,207 2,376
Construction, 1 to 4 family residential          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 761 322 617 280 280
Charge-offs 0 0 (152) (232) (405)
Recoveries 0 7 0 32  
Credit loss expense (benefit) (85) (9) 211 240  
Ending balance 676 320 676 320 617
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 307 142 410 179 179
Credit loss (benefit) expense 31 (9) (72) (46)  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 338 133 338 133 410
Construction, land development and commercial          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 3,485 2,145 3,165 2,113 2,113
Charge-offs (137) 0 (137) (19) (23)
Recoveries 0 2 15 4  
Credit loss expense (benefit) 52 125 357 174  
Ending balance 3,400 2,272 3,400 2,272 3,165
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 1,019 329 844 306 306
Credit loss (benefit) expense 717 119 892 142  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 1,736 448 1,736 448 844
Mortgage, farmland          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 1,930 3,469 2,478 3,252 3,252
Charge-offs 0 0 (68) 0 0
Recoveries 90 1 91 14  
Credit loss expense (benefit) (101) (140) (582) 64  
Ending balance 1,919 3,330 1,919 3,330 2,478
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 47 41 71 13 13
Credit loss (benefit) expense (17) 11 (41) 39  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 30 52 30 52 71
Mortgage, 1 to 4 family first liens          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 20,974 18,639 20,959 18,210 18,210
Charge-offs (171) (61) (647) (389) (947)
Recoveries 426 149 532 222  
Credit loss expense (benefit) (976) 834 (591) 1,518  
Ending balance 20,253 19,561 20,253 19,561 20,959
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 69 231 122 120 120
Credit loss (benefit) expense 137 (66) 84 45  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 206 165 206 165 122
Mortgage, 1 to 4 family junior liens          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 5,517 4,642 5,639 4,719 4,719
Charge-offs (59) (79) (259) (136) (428)
Recoveries 141 80 187 169  
Credit loss expense (benefit) (318) 387 (286) 278  
Ending balance 5,281 5,030 5,281 5,030 5,639
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 503 295 435 292 292
Credit loss (benefit) expense (89) 30 (21) 33  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 414 325 414 325 435
Mortgage, multi-family          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 2,358 2,930 2,345 2,828 2,828
Charge-offs 0 0 0 (200) (207)
Recoveries 59 80 192 94  
Credit loss expense (benefit) 114 (76) (6) 212  
Ending balance 2,531 2,934 2,531 2,934 2,345
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 82 24 30 1 1
Credit loss (benefit) expense (40) 15 12 38  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 42 39 42 39 30
Mortgage, commercial          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 9,251 8,137 9,855 7,525 7,525
Charge-offs (75) (200) (176) (437) (1,090)
Recoveries 117 9 122 18  
Credit loss expense (benefit) 7 305 (501) 1,145  
Ending balance 9,300 8,251 9,300 8,251 9,855
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 26 123 62 45 45
Credit loss (benefit) expense 128 12 92 90  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 154 135 154 135 62
Loans to individuals          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 964 970 826 1,109 1,109
Charge-offs (119) (318) (290) (692) (1,722)
Recoveries 106 118 229 212  
Credit loss expense (benefit) 79 100 265 241  
Ending balance 1,030 870 1,030 870 826
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 42 47 56 43 43
Credit loss (benefit) expense 77 8 63 12  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance 119 55 119 55 56
Obligations of state and political subdivisions          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Beginning balance 12 12 12 13 13
Charge-offs 0 0 0 0 0
Recoveries 0 0 0 0  
Credit loss expense (benefit) 0 0 0 (1)  
Ending balance 12 12 12 12 12
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]          
Beginning balance 38 1 7 1 1
Credit loss (benefit) expense (37) 0 (6) 0  
(Charge-offs), net recoveries 0 0 0 0  
Ending balance $ 1 $ 1 $ 1 $ 1 $ 7