Stockholders' Equity (Details)	3 Months Ended
	Mar. 31, 2017 $ / shares shares
Class of Warrant or Right [Line Items]
Total Warrants (in shares) | shares	2,406,625
Common Stock Warrant One [Member]
Class of Warrant or Right [Line Items]
Issue Date	Apr. 26, 2013
Expiration Date	Apr. 26, 2018
Total Warrants (in shares) | shares	13,865
Exercise price (in dollars per share) | $ / shares	$ 55.90
Common Stock Warrant Two [Member]
Class of Warrant or Right [Line Items]
Issue Date	Oct. 31, 2013
Expiration Date	Apr. 30, 2019
Total Warrants (in shares) | shares	137,143
Exercise price (in dollars per share) | $ / shares	$ 3.75
Common Stock Warrant Three [Member]
Class of Warrant or Right [Line Items]
Issue Date	Feb. 05, 2014
Expiration Date	Feb. 05, 2019
Total Warrants (in shares) | shares	265,947
Exercise price (in dollars per share) | $ / shares	$ 3.75
Common Stock Warrant Four [Member]
Class of Warrant or Right [Line Items]
Issue Date	Jul. 24, 2014
Expiration Date	Jul. 24, 2019
Total Warrants (in shares) | shares	1,239,769
Common Stock Warrant Four [Member] | Minimum [Member]
Class of Warrant or Right [Line Items]
Exercise price (in dollars per share) | $ / shares	$ 3.75
Common Stock Warrant Four [Member] | Maximum [Member]
Class of Warrant or Right [Line Items]
Exercise price (in dollars per share) | $ / shares	$ 12.25
Common Stock Warrant Five [Member]
Class of Warrant or Right [Line Items]
Issue Date	Jun. 22, 2015
Expiration Date	Jun. 22, 2020
Total Warrants (in shares) | shares	600,000
Exercise price (in dollars per share) | $ / shares	$ 3.75
Common Stock Warrant Six [Member]
Class of Warrant or Right [Line Items]
Issue Date	Dec. 30, 2015
Expiration Date	Dec. 30, 2020
Total Warrants (in shares) | shares	130,089
Exercise price (in dollars per share) | $ / shares	$ 5.65
Common Stock Warrant Seven [Member]
Class of Warrant or Right [Line Items]
Issue Date	Jan. 29, 2016
Expiration Date	Jan. 29, 2021
Total Warrants (in shares) | shares	19,812
Exercise price (in dollars per share) | $ / shares	$ 5.30