Finance Receivables (Details - Charge-Offs for Financed Receivables) - USD ($) $ in Thousands	12 Months Ended
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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- Definition

Amount of increase in allowance for credit loss on accounts receivable, from recovery.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
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-URI https://asc.fasb.org//1943274/2147479319/326-20-50-14

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-Topic 326
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-Publisher FASB
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