(3) Finance Receivables (Details - Delinquency status) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total finance receivables with delinquency status	$ 232,390	$ 491,307
Financial Asset, 1 to 29 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total finance receivables with delinquency status	186,625	406,693
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total finance receivables with delinquency status	30,980	56,572
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total finance receivables with delinquency status	12,070	22,660
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total finance receivables with delinquency status	$ 2,715	$ 5,382