CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net cash used in operating activities (Note 20)	$ (9,935)	$ (18,459)
Cash flows from (used in) investing activities:
Proceeds from sale of assets	789	982
Additions to property, plant and equipment	(44)	(500)
Net cash from investing activities	745	482
Cash flows from financing activities:
Proceeds from issuance of common stock, net of issue costs		7,410
Proceeds from the issuance of convertible note	5,000
Convertible note costs	(312)
Net cash from financing activities	4,688	7,410
Net decrease in cash and cash equivalents	(4,502)	(10,567)
Cash and cash equivalents, beginning of period	8,579	19,146
Cash and cash equivalents, end of period	$ 4,077	$ 8,579