9. Income Taxes (Details-Provision for income taxes) - USD ($)	3 Months Ended									12 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
Federal										$ 0	$ 0	$ 0
State										86,787	37,070	14,875
Foreign										10,447	5,458	6,691
Total Current										97,234	42,528	21,566
Deferred:
Federal										0	0	77,428
State										0	0	4,075
Total Deferred										0	0	81,503
Total provision (benefit) for income taxes	$ 3,277	$ 23,747	$ 24,591	$ 7,444	$ 13,968	$ 11,603	$ 1,244	$ 7,080	$ 18,643	$ 97,234	$ 42,528	$ 103,069