12. Employee Benefits (Details - Funded Status) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Change in Projected Benefit Obligation
Projected benefit obligation, beginning of year	$ 21,385	$ 22,559
Service cost	0	0
Interest cost	882	843	$ 888
Assumption changes	95	(485)
Actuarial (gain) loss	89	(14)
Settlements	0	0
Benefits paid	(936)	(1,518)
Projected benefit obligation, end of year	21,515	21,385	$ 22,559
Change in Plan Assets
Fair value of plan assets, beginning of year	16,374
Return on assets	1,031	(1,818)
Employer contribution	0	0
Expenses	(226)	(138)
Settlements	0	0
Benefits paid under change in plan assets	(936)	(1,518)
Fair value of plan assets, end of year	16,243	16,374
Funded Status at end of year	$ (5,272)	$ (5,011)