13. Fair Value Measurements (Details - Fair Value Financial Assets) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets:
Cash and cash equivalents	$ 13,936	$ 19,322	$ 17,859	$ 22,112
Restricted cash and equivalents	112,754	106,054
Finance receivables, net	2,104,503	1,879,510
Accrued interest receivable	36,233	31,547
Liabilities:
Warehouse lines of credit	103,358	194,056
Accrued interest payable	3,715	3,260
Residual interest financing	0	9,042
Securitization trust debt	2,138,892	1,718,418
Subordinated renewable notes	14,949	15,138
Level 1 [Member]
Assets:
Cash and cash equivalents	13,936	19,322
Restricted cash and equivalents	112,754	106,054
Finance receivables, net	0	0
Accrued interest receivable	0	0
Liabilities:
Warehouse lines of credit	0	0
Accrued interest payable	0	0
Residual interest financing		0
Securitization trust debt	0	0
Subordinated renewable notes	0	0
Level 2 [Member]
Assets:
Cash and cash equivalents	0	0
Restricted cash and equivalents	0	0
Finance receivables, net	0	0
Accrued interest receivable	0	0
Liabilities:
Warehouse lines of credit	0	0
Accrued interest payable	0	0
Residual interest financing		0
Securitization trust debt	0	0
Subordinated renewable notes	0	0
Level 3 [Member]
Assets:
Cash and cash equivalents	0	0
Restricted cash and equivalents	0	0
Finance receivables, net	2,104,503	1,879,510
Accrued interest receivable	36,233	31,547
Liabilities:
Warehouse lines of credit	103,358	194,056
Accrued interest payable	3,715	3,260
Residual interest financing		9,042
Securitization trust debt	2,138,892	1,718,418
Subordinated renewable notes	14,949	15,138
Total Amount [Member]
Assets:
Cash and cash equivalents	13,936	19,322
Restricted cash and equivalents	112,754	106,054
Finance receivables, net	2,172,365	1,909,490
Accrued interest receivable	36,233	31,547
Liabilities:
Warehouse lines of credit	103,358	194,056
Accrued interest payable	3,715	3,260
Residual interest financing		9,042
Securitization trust debt	2,080,900	1,720,021
Subordinated renewable notes	$ 14,949	$ 15,138