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Loans Held for Investment and Allowance for Credit Losses - Allowance for Credit Loss by Loan Segment (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | $ 337,635 | $ 236,601
Construction and land development |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 26,668 |
Residential real estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 49,046 | 37,815
Residential real estate multifamily |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 602 |
Commercial real estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 183,579 | 12,063
Commercial and industrial |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 19,364 |
Consumer |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 6,870 | 5,808
Lease financing receivables |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 31,466 |
Retained Strategic Program loans |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | $ 20,040 | $ 24,259

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