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1. Summary of Significant Accounting Policies (Details-Options outstanding) (USD $)
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Number of Shares    
Outstanding options, beginning balance 10,128,000  
Granted 2,030,000  
Exercised (1,168,000) (1,116,000)
Forfeited (103,000)  
Outstanding options, ending balance 10,887,000  
Options exercisable 5,719,000  
Weighted Average Exercise Price    
Outstanding options, beginning balance $ 3.30  
Granted $ 6.59  
Exercised $ 2.06  
Forfeited $ 4.58  
Outstanding options, ending balance $ 4.04  
Options exercisable $ 2.53  
Weighted Average Remaining Contractual Term    
Outstanding options, ending balance 6 years 2 months 26 days  
Options exercisable 5 years 1 month 2 days