2. Finance Receivables (Details - Delinquency status) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current	$ 1,689,353	$ 2,069,617
Finance receivables	1,882,599	2,298,608
Financing Receivables, 30 to 59 Days Past Due [Member]
Finance receivables	120,042	138,395
Financing Receivables, 60 to 89 Days Past Due [Member]
Finance receivables	50,866	63,081
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Finance receivables	$ 22,338	$ 27,515