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Leases - Additional Information (Detail) (USD $)
 9 Months Ended 122 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Component Of Operating Other Cost And Expense [Line Items]      
Rental expense     $ 4,532,000
Rental expenses include common area maintenance and real estate taxes 13,000    
Utilities costs per month 16,000    
Increase in total monthly expenditures 72,000    
Facility and equipment rent expense 407,000 345,000  
Pasadena, California
      
Component Of Operating Other Cost And Expense [Line Items]      
Rental expense 13,000    
Roche
      
Component Of Operating Other Cost And Expense [Line Items]      
Rental expense 22,000    
Monthly payments under capital lease $ 21,000