Shareholders' Equity - Summary of Stock Option Activity (Details)	6 Months Ended
	Jun. 30, 2016 USD ($) $ / shares shares
Options [Roll Forward]
Options outstanding, Beginning Balance (in shares) | shares	10,719,904
Options, Granted (in shares) | shares	1,937,750
Options, Exercised (in shares) | shares	0
Options, Forfeited or expired (in shares) | shares	(57,968)
Options outstanding, Ending Balance (in shares) | shares	12,599,686
Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price, Outstanding, Beginning Balance (in USD per share) | $ / shares	$ 1.18
Weighted Average Exercise Price, Granted (in USD per share) | $ / shares	0.29
Weighted Average Exercise Price, Exercised (in USD per share) | $ / shares	0.00
Weighted Average Exercise Price, Forfeited or expired (in USD per share) | $ / shares	(1.45)
Weighted Average Exercise Price, Outstanding, Ending Balance (in USD per share) | $ / shares	$ 1.05
Share-based Compensation Additional Disclosures [Abstract]
Weighted Average Remaining Contractual Term, Outstanding	3 years 8 months 18 days
Aggregate Intrinsic Value, Outstanding | $	$ 51,345
Options Vested and Expected to Vest [Abstract]
Options, Vested (in shares) | shares	8,820,320
Weighted Average Exercise Price, Vested (in USD per share) | $ / shares	$ 1.22
Weighted Average Remaining Contractual Term, Vested	1 year 7 months 18 days
Aggregate Intrinsic Value, Vested | $	$ 0