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Summary of Significant Accounting Policies (Details)
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Net loss per common share    
Antidilutive securities excluded from computations of diluted net loss per common share 2,740,067 1,809,182
Warrants To Purchase Common Stock [Member]
   
Net loss per common share    
Antidilutive securities excluded from computations of diluted net loss per common share 88,545 88,545
Employee And Nonemployee Stock Options [Member]
   
Net loss per common share    
Antidilutive securities excluded from computations of diluted net loss per common share 2,651,522 1,720,637