10. Fair Value Measurements (Details - Delinquency status) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Finance receivables measured at fair value current	$ 1,136,824	$ 790,727
Finance receivables measured at fair value	1,016,328	829,039
Financing Receivables, 31 - 60 Days Past Due [Member]
Finance receivables measured at fair value	28,708	26,285
Financing Receivables, 61 - 90 Days Past Due [Member]
Finance receivables measured at fair value	10,126	8,350
Financing Receivables, 91+ Days Past Due [Member]
Finance receivables measured at fair value	$ 5,544	$ 3,677