Shareholders' Equity - Summary of Warranty Liability Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Class of Warrant or Right [Roll Forward]
Beginning Balance	$ 1,958,775	$ 597,719	$ 1,064,810
Issuance of warrants and effect of repricing	2,427,183	4,286,314	62,683
Exercise of warrants	0	0	0
(Gain) or loss included in earnings	(3,812,398)	(2,925,258)	(529,774)
Transfers in and/or out of Level 3	0	0	0
Ending Balance	$ 573,560	$ 1,958,775	$ 597,719