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License agreement with Wyeth Holding Corporation (Details) (License agreement, Wyeth, USD $) In Millions, unless otherwise specified | 9 Months Ended | 93 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2014
License agreement | Wyeth |  |
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |  |
Notice period required for termination of license agreement | 90 days |
Aggregate amount of payments made under license agreement |  | $ 6.4
Expected milestone payment associated with the first Phase 3 clinical trial | $ 3.0 | $ 3.0

X
- Definition Represents the aggregate amount of payments made under the license agreement as of the balance sheet date. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

X
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- Details
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