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Loans Held for Investment and Allowance for Credit Losses - Collateral-Dependent Financial Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | $ 337,635 | $ 236,601
Total |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 10,406 |
Real Estate |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 10,385 |
Personal Property |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 21 |
Residential real estate | Total |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 118 |
Residential real estate | Real Estate |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 118 |
Residential real estate | Personal Property |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 0 |
Commercial real estate | Total |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 10,267 | 1,426
Commercial real estate | Real Estate |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 10,267 | 1,426
Commercial real estate | Personal Property |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 0 | $ 0
Commercial and industrial |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 19,364 |
Commercial and industrial | Total |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 21 |
Commercial and industrial | Real Estate |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | 0 |
Commercial and industrial | Personal Property |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |
Total loans | $ 21 |

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481598/310-20-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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