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Loans Held for Investment and Allowance for Credit Losses on Loans - Gross Charges-offs by Year of Orgination (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items] |
Current fiscal year gross charge-offs | $ 933
Fiscal year before current fiscal year gross charge-offs | 1,436
Two years before current fiscal year gross charge-offs | 517
Three years before current fiscal year gross charge-offs | 633
Four years before current fiscal year gross charge-offs | 277
Prior gross charge-offs | 425
Revolving Loans Amortized Cost Basis gross charge-offs | 19
Total current-period gross charge-offs | 4,240
Real Estate [Member] | Commercial Real Estate Owner Occupied [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Current fiscal year gross charge-offs | 174
Fiscal year before current fiscal year gross charge-offs | 196
Two years before current fiscal year gross charge-offs | 26
Three years before current fiscal year gross charge-offs | 203
Four years before current fiscal year gross charge-offs | 165
Prior gross charge-offs | 158
Total current-period gross charge-offs | 922
Real Estate [Member] | Commercial Real Estate Non-Owner Occupied [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Prior gross charge-offs | 3
Total current-period gross charge-offs | 3
Real Estate [Member] | Construction and Development Less than 60 Months [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Fiscal year before current fiscal year gross charge-offs | 3
Three years before current fiscal year gross charge-offs | 2
Prior gross charge-offs | 1
Total current-period gross charge-offs | 6
Real Estate [Member] | Construction Residential Real Estate Less than 60 Months [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Fiscal year before current fiscal year gross charge-offs | 94
Total current-period gross charge-offs | 94
Real Estate [Member] | Residential Real Estate First Lien [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Two years before current fiscal year gross charge-offs | 91
Three years before current fiscal year gross charge-offs | 44
Four years before current fiscal year gross charge-offs | 5
Prior gross charge-offs | 25
Total current-period gross charge-offs | 165
Real Estate [Member] | Residential Real Estate All Other [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Fiscal year before current fiscal year gross charge-offs | 4
Two years before current fiscal year gross charge-offs | 19
Four years before current fiscal year gross charge-offs | 1
Prior gross charge-offs | 36
Total current-period gross charge-offs | 60
Real Estate [Member] | Agriculture Member |
Financing Receivable, Credit Quality Indicator [Line Items] |
Fiscal year before current fiscal year gross charge-offs | 154
Two years before current fiscal year gross charge-offs | 9
Three years before current fiscal year gross charge-offs | 317
Four years before current fiscal year gross charge-offs | 14
Prior gross charge-offs | 2
Total current-period gross charge-offs | 496
Commercial Non-real Estate [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Current fiscal year gross charge-offs | 390
Fiscal year before current fiscal year gross charge-offs | 351
Two years before current fiscal year gross charge-offs | 111
Three years before current fiscal year gross charge-offs | 22
Four years before current fiscal year gross charge-offs | 51
Prior gross charge-offs | 160
Total current-period gross charge-offs | 1,085
Consumer Non-real Estate [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Current fiscal year gross charge-offs | 312
Fiscal year before current fiscal year gross charge-offs | 632
Two years before current fiscal year gross charge-offs | 261
Three years before current fiscal year gross charge-offs | 45
Four years before current fiscal year gross charge-offs | 41
Prior gross charge-offs | 40
Revolving Loans Amortized Cost Basis gross charge-offs | 19
Total current-period gross charge-offs | 1,350
Oil and Gas [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Current fiscal year gross charge-offs | 57
Fiscal year before current fiscal year gross charge-offs | 2
Total current-period gross charge-offs | $ 59

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