Annual report pursuant to Section 13 and 15(d)

Summary of Net Revenue by Geographic Location (Detail)

v3.7.0.1
Summary of Net Revenue by Geographic Location (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Segment Reporting Information [Line Items]      
Net revenue $ 51,810 $ 48,475 $ 47,656
UNITED STATES      
Segment Reporting Information [Line Items]      
Net revenue 33,385 29,433 29,848
International      
Segment Reporting Information [Line Items]      
Net revenue $ 18,425 $ 19,042 $ 17,808