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Subsequent Events - Additional Information (Detail) - USD ($)
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Oct. 08, 2015
Oct. 05, 2015
Scenario, Forecast [Member] | Primsol Business [Member]          
Subsequent Event [Line Items]          
Additional cash payable in business acquisition $ 250,000 $ 500,000 $ 500,000    
Subsequent Event [Member] | Biovest International, Inc. ("Biovest") [Member]          
Subsequent Event [Line Items]          
Master services agreement, term       4 years  
Master services agreement, notice period for termination related to material breach       30 days  
Master services agreement, notice period for termination       180 days  
Master services agreement, aggregate consideration       $ 5,000,000  
Master services agreement, amount paid       $ 1,000,000  
Subsequent Event [Member] | Primsol Business [Member]          
Subsequent Event [Line Items]          
Cash paid to acquire business         $ 500,000
Additional cash payable in business acquisition         $ 142,000