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Finance Receivables (Details - Charge-Offs for Financed Receivables) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Financing Receivable, Past Due [Line Items] |  |  |
Charge-offs | $ 8,064 | $ 18,319 | $ 30,940
Vintage Pool 2014 [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Charge-offs | 325 | 963 | 3,640
Vintage Pool 2015 [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Charge-offs | 1,031 | 3,047 | 9,816
Vintage Pool 2016 [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Charge-offs | 3,266 | 6,586 | 13,330
Vintage Pool 2017 [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Charge-offs | 4,294 | 8,271 | 14,073
Applied Against Repos In Inventory Member [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Charge-Offs for financed receivables applied | $ (852) | $ (548) |
Charge-Offs for financed receivables applied |  |  | $ (9,919)

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