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(1) Summary of Significant Accounting Policies (Details Narrative) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 shares
Product Information [Line Items] |  |  |
Unrestricted cash | $ 29,928 | $ 13,466 |
Portfolio value | 29,500 | 4,400 |
Other assets | $ 34,775 | $ 32,317 |
Incremental shares excluded from EPS calculation | shares | 5,700 | 13,600 | 11,300
Provision for credit losses | $ 14,600 | $ 14,100 |
Receivables at fair value | 29,500 |  |
Repossessed Vehicles [Member] |  |  |
Product Information [Line Items] |  |  |
Other assets | 2,500 | $ 3,800 |
Unrestricted Cash [Member] |  |  |
Product Information [Line Items] |  |  |
Unrestricted cash | $ 29,900 |  |
Repossessed Vehicles [Member] |  |  |
Product Information [Line Items] |  |  |
Ownership percentage in subsidiary | 0.80 |  |
Dealer concentration [Member] | Geographic Concentration Risk [Member] | CALIFORNIA |  |  |
Product Information [Line Items] |  |  |
Concentration percentage | 10.90% | 13.50% |
Dealer concentration [Member] | Geographic Concentration Risk [Member] | OHIO |  |  |
Product Information [Line Items] |  |  |
Concentration percentage | 9.30% | 11.10% |
Dealer concentration [Member] | Geographic Concentration Risk [Member] | TEXAS |  |  |
Product Information [Line Items] |  |  |
Concentration percentage | 6.10% | 5.10% |
Dealer concentration [Member] | Geographic Concentration Risk [Member] | NORTH CAROLINA |  |  |
Product Information [Line Items] |  |  |
Concentration percentage | 5.00% | 4.60% |
Dealer concentration [Member] | Geographic Concentration Risk [Member] | INDIANA |  |  |
Product Information [Line Items] |  |  |
Concentration percentage | 5.00% | 5.40% |
Dealer concentration [Member] | Geographic Concentration Risk [Member] | PANAMA |  |  |
Product Information [Line Items] |  |  |
Concentration percentage | 4.60% | 3.40% |

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