Quarterly report pursuant to sections 13 or 15(d)

5. Warrants Outstanding (Details)

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5. Warrants Outstanding (Details) (Warrants, USD $)
9 Months Ended
Sep. 30, 2013
Warrants
 
Warrant shares  
Beginning Balance 42,205,507
Granted 150,000
Exercised (22,753,662)
Forfeited or expired (1,407,523)
Ending Balance 18,194,322
Vested and exercisable 17,310,988
Weighted Average Exercise Price  
Weighted Average Exercise Price, Outstanding Beginning Balance $ 0.31
Weighted Average Exercise Price, Granted $ 0.30
Weighted Average Exercise Price, Exercised $ 0.30
Weighted Average Exercise Price, Forfeited or expired $ 0.34
Weighted Average Exercise Price, Outstanding Ending Balance $ 0.33
Weighted Average Exercise Price, Vested and exercisable $ 0.33
Weighted Average Remaining Contractual Term  
Weighted-Average Remaining Contractual Term, Outstanding 2 years
Weighted-Average Remaining Contractual Term, Vested and exercisable 1 year 8 months 12 days
Aggregate Intrinsic Value, Outstanding $ 17,185,387
Aggregate Intrinsic Value, Vested and exercisable $ 16,328,553