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Commitments and Contingencies (Details) (USD $)
Jun. 30, 2014
Clinical Research Study Obligations [Member]
 
Recorded Unconditional Purchase Obligation [Line Items]  
Purchase obligation, due in next twelve months $ 5,755,000
Purchase obligation 7,605,000
Pre Clinical Research Study Obligations [Member]
 
Recorded Unconditional Purchase Obligation [Line Items]  
Purchase obligation, due in next twelve months 23,000
Minimum Purchase Obligation, Supply Agreement [Member]
 
Recorded Unconditional Purchase Obligation [Line Items]  
Minimum purchase obligations, total 850,000
Operating lease obligations [Member]
 
Recorded Unconditional Purchase Obligation [Line Items]  
Contractual Obligation, due in next twelve months 1,905,000
Contractual obligation $ 6,333,000