Quarterly report pursuant to Section 13 or 15(d)

Acquisition - Additional Information (Detail)

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Acquisition - Additional Information (Detail) (USD $)
3 Months Ended 1 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Bionostics Holdings, Ltd
Jun. 30, 2013
Bionostics Holdings, Ltd
Jul. 22, 2013
Bionostics Holdings, Ltd
Developed technology
Jul. 22, 2013
Bionostics Holdings, Ltd
Trade names
Jul. 22, 2013
Bionostics Holdings, Ltd
Non-compete agreement
Jul. 22, 2013
Bionostics Holdings, Ltd
Customer relationships
Business Acquisition [Line Items]                
Acquired intangible assets         $ 14,400,000 $ 2,700,000 $ 2,400,000 $ 41,000,000
Acquired intangible assets, useful life (in years)         9 years 5 years 3 years 14 years
Business acquisition, transaction costs     532,000 607,000        
Net Sales     6,200,000          
Net Loss     (16,000)          
Amortization of intangible assets     1,100,000          
Costs recognized on sales of acquired inventory $ 1,731,000 $ 1,264,000 $ 660,000