CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY (Unaudited) - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Total	Common Shares	Additional Paid in Capital	Deficit Accumulated
Beginning balance (in shares) at Dec. 31, 2016	202,737,860	202,737,860
Beginning balance at Dec. 31, 2016	$ 37,541	$ 20	$ 620,513	$ (582,992)
Increase (Decrease) in Stockholders' Equity
Notes conversions including shares issued for accrued interest (in shares)		1,579,099
Notes conversions	4,912	$ 1	4,911
Debt conversion expense (in shares)		212,800
Debt conversion expense	1,209		1,209
Common stock issued in connection with exercise of stock options (in shares)		89,978
Common stock issued in connection with exercise of stock options	329		329
Common stock issued in registered direct offering (in shares)		20,325,204
Common stock issued in registered direct offering	121,951	$ 2	121,949
Fees related to registered direct offering	(347)		(347)
Stock based compensation expense	2,897		2,897
Net loss for the period	$ (64,604)			(64,604)
Ending balance (in shares) at Mar. 31, 2017	224,944,941	224,944,941
Ending balance at Mar. 31, 2017	$ 103,888	$ 23	$ 751,461	$ (647,596)