1. Summary of Significant Accounting Policies (Details-Options outstanding)	3 Months Ended
	Mar. 31, 2017 $ / shares shares
Number of Shares
Outstanding options, beginning balance | shares	12,595,000
Granted | shares	0
Exercised | shares	(279,000)
Forfeited | shares	0
Outstanding options, ending balance | shares	12,316,000
Options exercisable at the end of period | shares	7,327,000
Weighted Average Exercise Price
Outstanding options, beginning balance | $ / shares	$ 4.56
Granted | $ / shares
Exercised | $ / shares	1.69
Forfeited | $ / shares
Outstanding options, ending balance | $ / shares	4.63
Options exercisable at the end of period | $ / shares	$ 4.2
Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term, ending	4 years 10 months 13 days
Options exercisable at the end of period	4 years 5 months 9 days