Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses and Other Long-Term Liabilities - Additional Information (Detail)

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Accrued Expenses and Other Long-Term Liabilities - Additional Information (Detail)
€ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2015
EUR (€)
Dec. 31, 2014
USD ($)
Dec. 12, 2014
USD ($)
Dec. 31, 2012
USD ($)
Schedule Accrued Expenses And Other Long-Term Liabilities [Line Items]                    
Other Liabilities $ 2,800,000   $ 2,800,000       € 2.5      
Other Accrued Liabilities, Current 291,000   291,000         $ 213,000    
Asset Retirement Obligation, Accretion Expense 0 $ 39,000 167,000 $ 114,000            
Capital Leases, Future Minimum Payments Receivable, Next Twelve Months                 $ 500,000  
Subsequent Event [Member]                    
Schedule Accrued Expenses And Other Long-Term Liabilities [Line Items]                    
Capital Leases, Future Minimum Payments, Receivable in Two Years           $ 500,000        
Capital Leases, Future Minimum Payments, Receivable in Three Years         $ 500,000          
Ovamed Manufacturing Rights [Member]                    
Schedule Accrued Expenses And Other Long-Term Liabilities [Line Items]                    
Other Liabilities                   $ 1,500,000
Other Accrued Liabilities, Current $ 1,500,000   $ 1,500,000