XML 78 R66.htm IDEA: XBRL DOCUMENT v3.8.0.1
12. Employee Benefits (Details - Weighted average assumptions)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Weighted average assumptions used to determine benefit obligations    
Discount rate 3.50% 4.05%
Weighted average assumptions used to determine net periodic benefit cost    
Discount rate 4.05% 4.20%
Expected return on plan assets 7.25% 7.50%