13. Fair Value Measurements (Details - Fair value) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Debt Secured by Finance Receivables Measured at Fair Value:
Balance at beginning of period	$ 1,250
Balance at end of period	0	$ 1,250
Fair Value, Measurements, Recurring [Member]
Finance Receivables Measured at Fair Value:
Balance at beginning of period	1,664	14,476
Payments on finance receivables at fair value	(1,603)	(12,276)
Charge-offs on finance receivables at fair value	0	(846)
Discount accretion	0	283
Mark to fair value	0	27
Balance at end of period	61	1,664
Debt Secured by Finance Receivables Measured at Fair Value:
Balance at beginning of period	1,250	13,117
Principal payments on debt at fair value	(1,250)	(12,456)
Premium accretion	0	712
Mark to fair value	0	(123)
Balance at end of period	0	1,250
Reduction for principal payments collected and payable	0	0
Adjusted balance at end of period	$ 0	$ 1,250