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Summary of Significant Accounting Policies (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Product Information [Line Items]
Unrestricted cash	$ 6,174,000	$ 13,490,000
Portfolio value	12,000,000	15,300,000
Other assets	$ 25,861,000	$ 30,974,000
Incremental shares excluded from EPS calculation	1,700,000	1,200,000	5,700,000
Repossessed Vehicles [Member]
Product Information [Line Items]
Other assets	$ 125,000	$ 571,000
Unrestricted Cash [Member]
Product Information [Line Items]
Unrestricted cash	$ 6,200,000
TEXAS \| Dealer concentration [Member] \| Geographic Concentration Risk [Member]
Product Information [Line Items]
Concentration percentage	7.10%	7.80%
ILLINOIS \| Dealer concentration [Member] \| Geographic Concentration Risk [Member]
Product Information [Line Items]
Concentration percentage	6.90%	5.70%
OHIO \| Dealer concentration [Member] \| Geographic Concentration Risk [Member]
Product Information [Line Items]
Concentration percentage	6.20%	7.60%
CALIFORNIA \| Dealer concentration [Member] \| Geographic Concentration Risk [Member]
Product Information [Line Items]
Concentration percentage	6.00%	8.20%
FLORIDA \| Dealer concentration [Member] \| Geographic Concentration Risk [Member]
Product Information [Line Items]
Concentration percentage	5.40%	5.10%
PENNSYLVANIA \| Dealer concentration [Member] \| Geographic Concentration Risk [Member]
Product Information [Line Items]
Concentration percentage	5.00%	4.60%