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Summary of Significant Accounting Policies (Details 1) - shares
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dilutive adjustments to the weighted average number of common shares    
Total 4,713,928 8,357,736
Common stock purchase warrants [Member]    
Dilutive adjustments to the weighted average number of common shares    
Total 1,889,191 6,085,714
Stock options [Member]    
Dilutive adjustments to the weighted average number of common shares    
Total 2,824,737 2,272,022