(2) Finance Receivables (Details - Delinquency status) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
FinanceReceivablesDelinquencyStatusLineItems [Line Items]
Total finance receivables with delinquency status	$ 410,623	$ 491,307
Financial Asset, 1 to 29 Days Past Due [Member]
FinanceReceivablesDelinquencyStatusLineItems [Line Items]
Finance receivables	360,369	406,693
Financial Asset, 30 to 59 Days Past Due [Member]
FinanceReceivablesDelinquencyStatusLineItems [Line Items]
Finance receivables	35,533	56,572
Financial Asset, 60 to 89 Days Past Due [Member]
FinanceReceivablesDelinquencyStatusLineItems [Line Items]
Finance receivables	11,683	22,660
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
FinanceReceivablesDelinquencyStatusLineItems [Line Items]
Finance receivables	$ 3,038	$ 5,382