Significant Accounting Policies - Summary of Warrant Activity (Details 2)	9 Months Ended
	Sep. 30, 2015 shares
Class of Warrant or Right [Line Items]
Warrants outstanding at December 31, 2014	406,736
Issuances	4,174,681
Anti-dilution adjustments	256,452
Exchanged for common stock	(1,147,805)
Exercised/extinguished	(2,807,007)
Warrants outstanding at September 30, 2015	883,057
2013 & 2014 Issuances
Class of Warrant or Right [Line Items]
Warrants outstanding at December 31, 2014	406,736
Issuances
Anti-dilution adjustments	256,452
Exchanged for common stock
Exercised/extinguished	(17,298)
Warrants outstanding at September 30, 2015	645,890
2015 Issuances
Class of Warrant or Right [Line Items]
Warrants outstanding at December 31, 2014
Issuances	4,174,681
Anti-dilution adjustments
Exchanged for common stock	(1,147,805)
Exercised/extinguished	(2,789,709)
Warrants outstanding at September 30, 2015	237,167