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Commitments and Contingencies (Details) (USD $)
Sep. 30, 2014
Clinical Research Study Obligations [Member]
 
Recorded Unconditional Purchase Obligation [Line Items]  
Purchase obligation, due in next twelve months $ 4,785,000
Purchase obligation 6,358,000
Operating Lease Obligations [Member]
 
Recorded Unconditional Purchase Obligation [Line Items]  
Contractual Obligation, due in next twelve months 2,197,000
Contractual obligation $ 6,919,000