Quarterly report pursuant to Section 13 or 15(d)

Fair value (Details 2)

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Fair value (Details 2) (USD $)
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Balance - January 1, $ 231,200 $ 38,300
Change in fair value of derivative liability (12,400) (64,500)
Value of warrants exercised (144,439) 0
Issuance of derivative liability 2,229,200 434,200
Balance - September 30, $ 2,303,561 $ 408,000