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Other Capital Stock Agreements (Details) (USD $) In Millions, except Share data, unless otherwise specified | 1 Months Ended
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Oct. 31, 2012
Schedule of Capitalization, Equity |
Stock Issued During Period, Shares, New Issues | 17,500,000
Offering Price Per Share | $ 2.25
Net Proceeds From Stock Offering | $ 37.1
Payments of Underwriting Discounts and Commissions | 2.0
Payments of Stock Issuance Costs | $ 0.2
Stock Issued During Period to Invus, Shares | 3,000,000

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