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Royalty Liability (Details Textual) (USD $)
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0 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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Nov. 14, 2011
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Mar. 15, 2011
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Sep. 30, 2013
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Sep. 30, 2012
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| Percentage of Aggregate Royalties on Net Sales | 2.50% | |||
| Percentage of Royalties above Threshold | 40.00% | |||
| Percentage of Retain Royalties on Net Sales above Threshold | 60.00% | |||
| Gains Losses On Extinguishment Of Royalty Liability | $ 8,962,000 | $ 0 | ||
| Accrued Royalties | 5,000,000 | 3,000,000 | ||
| Royalty Rights Repurchase Price | $ 40,000,000 | |||
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Minimum [Member]
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| Percentage of Aggregate Royalties on Net Sales | 5.50% | |||
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Maximum [Member]
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| Percentage of Aggregate Royalties on Net Sales | 7.50% | |||