Stockholders' Equity (Details 1)	12 Months Ended
	Dec. 31, 2017 $ / shares shares
Summary of outstanding warrants to purchase common stock
Shares	11,163,677
August 2016 Prefunded Warrants [Member]
Summary of outstanding warrants to purchase common stock
Issue Date	Aug. 16, 2016
Exercise Price | $ / shares	$ 1.00
Shares	3,600,000
Expiration Date	Feb. 16, 2022
August 2016 Purchase Warrants [Member]
Summary of outstanding warrants to purchase common stock
Issue Date	Aug. 17, 2016
Exercise Price | $ / shares	$ 1.12
Shares	4,313,676
Expiration Date	Feb. 17, 2022
August 2017 Purchase Warrants [Member]
Summary of outstanding warrants to purchase common stock
Issue Date	Aug. 08, 2017
Exercise Price | $ / shares	$ 2.00
Shares	3,250,001
Expiration Date	Aug. 08, 2020