CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (CAPITAL DEFICIENCY) - USD ($) $ in Thousands		Total	Common Stock [Member]		Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Balance at Dec. 31, 2016		$ (9,957)	$ 124		$ 202,575	$ (212,656)
Balance (in shares) at Dec. 31, 2016	[1]		124,134,085
Share-based compensation related to stock options		216			216
Reclassification of embedded derivative		43,634			43,634
Convertible notes conversions		4,137	$ 5		4,132
Convertible notes conversions (in shares)	[1]		4,948,821
Net loss for the period		(58,698)				(58,698)
Balance at Jun. 30, 2017		(20,668)	$ 129		250,557	(271,354)
Balance (in shares) at Jun. 30, 2017	[1]		129,082,906
Balance at Dec. 31, 2017		(31,293)	$ 144		266,495	(297,932)
Balance (in shares) at Dec. 31, 2017	[1]		143,728,797
Share-based compensation related to stock options		58			58
Share-based compensation related to restricted stock award		16		[2]	16
Share-based compensation related to restricted stock award (in shares)	[1]		29,898
Convertible notes conversions		1,192	$ 2		1,190
Convertible notes conversions (in shares)	[1]		1,811,260
Convertible notes exchange		1,150	$ 2		1,148
Convertible notes exchange (in shares)	[1]		2,613,636
Net loss for the period		(20,694)				(20,694)
Balance at Jun. 30, 2018		$ (49,571)	$ 148		$ 268,907	$ (318,626)
Balance (in shares) at Jun. 30, 2018	[1]		148,183,591

[1] Common Stock, $0.001 par value; Authorized – as of June 30, 2018 and 2017 - 250,000,000.

[2] Represents an amount less than $1.