12. Employee Benefits (Details - Funded Status) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Change in Projected Benefit Obligation
Projected benefit obligation, beginning of year	$ 22,559	$ 18,841
Service cost	0	0
Interest cost	843	888	$ 823
Assumption changes	(485)	3,570
Actuarial (gain) loss	(14)	211
Settlements	0	0
Benefits paid	(1,518)	(951)
Projected benefit obligation, end of year	21,385	22,559	18,841
Change in Plan Assets
Fair value of plan assets, beginning of year	19,848	21,664
Return on assets	(1,818)	(1,009)
Employer contribution	0	237
Expenses	(138)	(93)
Settlements	0	0
Benefits paid under change in plan assets	(1,518)	(951)
Fair value of plan assets, end of year	16,374	19,848	$ 21,664
Funded Status at end of year	$ (5,011)	$ (2,711)