CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' DEFICIT (USD $)	Common Stock, Par Value	Additional Paid in Capital	Deficit Accumulated	Total
Balance at Dec. 31, 2014	$ 10,000	$ 261,716,000	$ (266,885,000)	$ (5,159,000)
Balance (in shares) at Dec. 31, 2014	96,609,764			96,609,764
Increase (Decrease) in Stockholders' Equity
Common stock issued pursuant to a controlled equity "at-the-market" sales agreement		5,558,000		5,558,000
Common stock issued pursuant to a controlled equity "at-the-market" sales agreement (in shares)	1,342,298
Fees and expenses related to controlled equity sales		(153,000)		(153,000)
Stock based compensation expense		2,405,000		2,405,000
Net loss for the period			(27,389,000)	(27,389,000)
Balance at Mar. 31, 2015	$ 10,000	$ 269,526,000	$ (294,274,000)	$ (24,738,000)
Balance (in shares) at Mar. 31, 2015	97,952,062			97,952,062