CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	100 Months Ended
Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014
Costs and Expenses:
Research and development	$ 13,299	$ 14,344	$ 121,636
Purchased in-process research and development			29,157
General and administrative	3,178	3,278	42,444
Loss from Operations	(16,477)	(17,622)	(193,237)
Other Income/(Loss)
Interest and investment income	58	18	613
Other income/(expense)	(29)		1,301
Change in fair value of derivative instruments-warrants	223	(1,093)	3,993
Total Other Income/(loss)	252	(1,075)	5,907
Loss from Continuing Operations	(16,225)	(18,697)	(187,330)
Loss from Discontinued Operations			(72)
Net Loss	$ (16,225)	$ (18,697)	$ (187,402)
Weighted Average Common Shares Outstanding
Basic and Diluted (in shares)	92,056,124	72,789,006
Net Loss per Common Share, Basic and Diluted
Net Loss per Common Share, Basic and Diluted (in dollars per share)	$ (0.18)	$ (0.26)

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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