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Finance Receivables (Details - Charge-offs for financed receivables) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | $ 544 | $ 1,477 | $ 1,976 | $ 6,391
Vintage Pool 2014 [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | 69 | 43 | 249 | 251
Vintage Pool 2015 [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | 60 | 129 | 242 | 870
Vintage Pool 2016 [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | 145 | 568 | 790 | 2,602
Vintage Pool 2017 [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | 446 | 948 | 972 | 3,548
Applied Against Repos In Inventory Member [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | $ (176) | $ (211) | $ (277) | $ (880)

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