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Warrants Outstanding (Detail) (Warrant, USD $)
6 Months Ended
Jun. 30, 2014
Warrant
 
Shares  
Beginning Balance 87,929,794
Granted 17,790,145
Exchanged cancelled 0
Exchanged issued 0
Cancelled 0
Exercised 0
Ending Balance 105,719,939
Exercisable 105,719,939
Weighted Average Exercise Price  
Beginning Balance $ 0.15
Granted $ 0.09
Exchanged cancelled $ 0
Exchanged issued $ 0
Cancelled $ 0
Exercised $ 0
Ending Balance $ 0.14
Exercisable $ 0.14