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Subsequent Events (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 1 Months Ended | 6 Months Ended
--- | --- | ---
May 31, 2012 | Jun. 30, 2009 | Jun. 30, 2013 Subsequent Event [Member]
Subsequent Event [Line Items] |  |  |
Common stock issued | 15.3 | 0.9 | 4.6
Proceeds from issuance of common stock | $ 21.1 | $ 2.7 | $ 1.8
Remaining amount |  |  | $ 48.2
Investment Warrants, Exercise Price |  |  | $ 0.37

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- Definition The remaining amount of common stock after being used for general purposes, including, but not limited to, funding of the Company's clinical trials, commercialization of our products, obtaining regulatory approvals, capital expenditures and working capital. + References No definition available. + Details
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