Supplemental Cash Flow Information - Schedule of Supplemental Disclosures of Noncash Investing and Financing Activities (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Adoption of ASC 606		$ 2,500
Acquisition of property and equipment		16
Settlement of the RedPath Note			(8,098)
Issuance of the Exchange Notes			11,375
Non-cash equity conversion costs			(137)
Debt issuance costs			(459)
Warrants issued through Termination Agreement	[1]		193
Common shares issued in debt exchange			$ 4,222

[1] See Note 14, Equity for more details