v3.26.1
Loans and Allowance for Credit Losses - Allowance For Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance $ 58,204 $ 50,940 $ 50,940
Charge-offs (1,466) (1,733) (6,989)
Recoveries 767 673  
Credit loss expense (benefit) (904) 3,070  
Ending balance 56,601 52,950 58,204
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 4,501 2,900 2,900
Credit loss (benefit) expense (161) 800  
(Charge-offs), net recoveries 0 0  
Ending balance 4,340 3,700 4,501
Agricultural      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 418 674 674
Charge-offs (21) (35) (39)
Recoveries 17 106  
Credit loss expense (benefit) 73 38  
Ending balance 487 783 418
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 88 147 147
Credit loss (benefit) expense 360 1  
(Charge-offs), net recoveries 0 0  
Ending balance 448 148 88
Commercial and financial      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 11,890 10,217 10,217
Charge-offs (277) (251) (2,128)
Recoveries 322 248  
Credit loss expense (benefit) (1,073) 687  
Ending balance 10,862 10,901 11,890
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 2,376 1,753 1,753
Credit loss (benefit) expense (617) 566  
(Charge-offs), net recoveries 0 0  
Ending balance 1,759 2,319 2,376
Construction, 1 to 4 family residential      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 617 280 280
Charge-offs (152) (232) (405)
Recoveries 15 24  
Credit loss expense (benefit) 281 250  
Ending balance 761 322 617
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 410 179 179
Credit loss (benefit) expense (103) (37)  
(Charge-offs), net recoveries 0 0  
Ending balance 307 142 410
Construction, land development and commercial      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 3,165 2,113 2,113
Charge-offs 0 (19) (23)
Recoveries 0 2  
Credit loss expense (benefit) 320 49  
Ending balance 3,485 2,145 3,165
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 844 307 307
Credit loss (benefit) expense 175 22  
(Charge-offs), net recoveries 0 0  
Ending balance 1,019 329 844
Mortgage, farmland      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 2,478 3,252 3,252
Charge-offs (68) 0  
Recoveries 1 13  
Credit loss expense (benefit) (481) 204  
Ending balance 1,930 3,469 2,478
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 71 13 13
Credit loss (benefit) expense (24) 29  
(Charge-offs), net recoveries 0 0  
Ending balance 47 42 71
Mortgage, 1 to 4 family first liens      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 20,959 18,210 18,210
Charge-offs (476) (328) (947)
Recoveries 105 73  
Credit loss expense (benefit) 386 684  
Ending balance 20,974 18,639 20,959
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 122 120 120
Credit loss (benefit) expense (53) 111  
(Charge-offs), net recoveries 0 0  
Ending balance 69 231 122
Mortgage, 1 to 4 family junior liens      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 5,639 4,719 4,719
Charge-offs (200) (57) (428)
Recoveries 46 89  
Credit loss expense (benefit) 32 (109)  
Ending balance 5,517 4,642 5,639
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 435 292 292
Credit loss (benefit) expense 68 3  
(Charge-offs), net recoveries 0 0  
Ending balance 503 295 435
Mortgage, multi-family      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 2,345 2,828 2,828
Charge-offs 0 (200) (207)
Recoveries 133 15  
Credit loss expense (benefit) (120) 287  
Ending balance 2,358 2,930 2,345
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 30 1 1
Credit loss (benefit) expense 52 23  
(Charge-offs), net recoveries 0 0  
Ending balance 82 24 30
Mortgage, commercial      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 9,855 7,525 7,525
Charge-offs (101) (237) (1,090)
Recoveries 5 9  
Credit loss expense (benefit) (508) 840  
Ending balance 9,251 8,137 9,855
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 62 45 45
Credit loss (benefit) expense (36) 78  
(Charge-offs), net recoveries 0 0  
Ending balance 26 123 62
Loans to individuals      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 826 1,109 1,109
Charge-offs (171) (374) (1,722)
Recoveries 123 94  
Credit loss expense (benefit) 186 141  
Ending balance 964 970 826
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 56 43 43
Credit loss (benefit) expense (14) 4  
(Charge-offs), net recoveries 0 0  
Ending balance 42 47 56
Obligations of state and political subdivisions      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance 12 13 13
Charge-offs 0 0 0
Recoveries 0 0  
Credit loss expense (benefit) 0 (1)  
Ending balance 12 12 12
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]      
Beginning balance 7 0 0
Credit loss (benefit) expense 31 0  
(Charge-offs), net recoveries 0 0  
Ending balance $ 38 $ 0 $ 7