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Braeburn License (Details Textual) (USD $)
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12 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Nov. 12, 2013
Collaborative Arrangement Co-promotion [Member]
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Dec. 31, 2012
Collaborative Arrangement Co-promotion [Member]
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Dec. 31, 2013
Collaborative Arrangement Co-promotion [Member]
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Mar. 31, 2013
Collaborative Arrangement Co-promotion [Member]
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Sep. 30, 2013
Collaborative Arrangement Co-promotion [Member]
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Dec. 31, 2012
Collaborative Arrangement Co-promotion [Member]
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Dec. 31, 2013
Collaborative Arrangement Co-promotion [Member]
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| Non Refundable up Front License Fee [Line Items] | ||||||||||
| Non-refundable up-front payment | $ 15,750,000 | |||||||||
| License and services revenue | 15,000,000 | |||||||||
| Milestone payment | 15,000,000 | |||||||||
| Additional amount received upon achievement of sales milestones | 165,000,000 | 165,000,000 | ||||||||
| Additional amount in regulatory milestones | 35,000,000 | 35,000,000 | ||||||||
| Estimated revenue recognition period for upfront payment | 30 months | 12 months | 18 months | |||||||
| Revenues to be recognized per month for upfront payment | 15,000,000 | 304,000 | 1,250,000 | 733,000 | 1,250,000 | |||||
| License revenue, recognized | 9,057,000 | 2,325,000 | 0 | 9,700,000 | ||||||
| Deferred contract revenue | 5,317,000 | 14,375,000 | 5,300,000 | 5,300,000 | ||||||
| Maximum receipt time for milestone payment | 10 days | |||||||||
| Investment Amount, Agreed To Invest | $ 5,000,000 | |||||||||