Quarterly report pursuant to Section 13 or 15(d)

Summary of Property, Plant, and Equipment (Detail)

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Summary of Property, Plant, and Equipment (Detail) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Property Plant And Equipment [Line Items]    
Property, plant, and equipment gross, excluding land $ 10,744 $ 9,883
Accumulated depreciation and amortization (7,050) (6,314)
Property, plant, and equipment net, excluding land 3,694 3,569
Land 162 158
Property, plant, and equipment, net 3,856 3,727
Building    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 208 203
Leasehold Improvements    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 2,004 2,019
Equipment and Computers    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 6,603 6,031
Furniture and Fixtures    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 599 585
Construction in Progress    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross $ 1,330 $ 1,045