Quarterly report pursuant to Section 13 or 15(d)

Summary of Sales by End Market (Detail)

v3.19.1
Summary of Sales by End Market (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Disaggregation Of Revenue [Line Items]    
Net revenue $ 10,326 $ 10,020
End-customer    
Disaggregation Of Revenue [Line Items]    
Net revenue 6,346 6,107
Distributors    
Disaggregation Of Revenue [Line Items]    
Net revenue $ 3,980 $ 3,913