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Subsequent Events	9 Months Ended
	Sep. 30, 2012
Subsequent Events [Abstract]
Subsequent Events	Note 12 - Subsequent Events In October 2012, the Company sold 12,385,321 shares of its common stock to two affiliates of RA Capital Management, LLC, three affiliates of Camber Capital Management LLC and three affiliates of Ayer Capital Management LLC at a price of $2.18 per share, resulting in approximately $26.9 million in net proceeds. The shares were offered under an effective shelf registration statement previously filed with the SEC.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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