Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Summary of Significant Accounting Policies [Abstract]

Potentially Dilutive Securities Excluded from Computations of Diluted Weighted Average Shares Outstanding

The following potentially dilutive securities have been excluded from the computations of diluted weighted average shares outstanding as they would be anti-dilutive:

	As of December 31,
	2015		2014		2013
Stock options to purchase Common Stock		4,302,267		2,445,711		1,993,278
Convertible preferred stock to purchase Common Stock		-		8,695,092		6,093,754
Warrants to purchase Common Stock		600,184		99,401		99,401
Warrants to purchase Series C Preferred Stock		-		338,534		338,534
Warrants to purchase Series C-1 Preferred Stock		-		257,028		-
Total		4,902,451		11,835,766		8,524,967