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Finance Receivables (Details - Charge-offs for financed receivables) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | $ 431 | $ 1,897 | $ 1,432 | $ 4,914
Vintage Pool 2014 [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | 110 | 67 | 180 | 208
Vintage Pool 2015 [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | 69 | 297 | 182 | 741
Vintage Pool 2016 [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | 268 | 713 | 645 | 2,034
Vintage Pool 2017 [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | 43 | 1,230 | 526 | 2,732
Applied Against Repos In Inventory Member [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Charge-offs | $ (59) | $ (410) | $ (101) | $ (801)

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