Quarterly report pursuant to sections 13 or 15(d)

5. Stock options and warrants (Details)

v2.4.0.8
5. Stock options and warrants (Details) (Option [Member], USD $)
6 Months Ended
Jun. 30, 2013
Option [Member]
 
Beginning Balance 27,278,098
Granted   
Exercised (30,000)
Forfeited or expired   
Ending Balance 27,248,098
Vested and exercisable 5,648,098
Weighted Average Exercise Price, Outstanding Beggining Balance $ 0.27
Weighted Average Exercise Price, Granted   
Weighted Average Exercise Price, Exercised $ 0.3
Weighted Average Exercise Price, Forfeited or expired   
Weighted Average Exercise Price, Outstanding Ending Balance $ 0.27
Weighted Average Exercise Price, Vested and exercisable $ 0.34
Weighted-Average Remaining Contractual Term, Outstanding 7 years 7 months 6 days
Weighted-Average Remaining Contractual Term, Vested and exercisable 7 years 7 months 6 days
Aggregate Intrinsic Value, Outstanding $ 22,681,207
Aggregate Intrinsic Value, Vested and exercisable $ 1,916,388