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Stockholders' Equity (Details 1) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Summary of warrants outstanding    
Number of Warrants (shares) 284,091 560,904
Common Stock Warrant Liability $ 1,167,614 $ 1,301,138
March 2013 financing    
Summary of warrants outstanding    
Exercise Price ($ per share) $ 3.17  
Expiration Date Sep. 12, 2018  
Number of Warrants (shares) 284,091 284,091
Common Stock Warrant Liability $ 1,167,614 $ 1,301,138
Warrants assumed in June 2009 Merger    
Summary of warrants outstanding    
Number of Warrants (shares) 0 276,813
Common Stock Warrant Liability $ 0 $ 0
Minimum | Warrants assumed in June 2009 Merger    
Summary of warrants outstanding    
Exercise Price ($ per share) $ 4.08  
Maximum | Warrants assumed in June 2009 Merger    
Summary of warrants outstanding    
Exercise Price ($ per share) $ 5.12