Summary of Significant Accounting Policies (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Summary of Antidilutive securities excluded from computation of earnings per share
Total potentially dilutive common shares	11,399,821	24,187,055
Stock options to purchase common stock [Member]
Summary of Antidilutive securities excluded from computation of earnings per share
Total potentially dilutive common shares	11,399,821	18,534,821
Series C Convertible Preferred Stock and related accrued dividends [Member]
Summary of Antidilutive securities excluded from computation of earnings per share
Total potentially dilutive common shares		2,023,658
Series D Convertible Preferred Stock [Member]
Summary of Antidilutive securities excluded from computation of earnings per share
Total potentially dilutive common shares		3,628,576