v3.2.0.727
Component of Net Sales by Region (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Segment Reporting Information [Line Items]        
Net sales $ 43,622 $ 36,797 $ 72,114 $ 61,652
UNITED STATES        
Segment Reporting Information [Line Items]        
Net sales 36,854 28,652 60,119 47,656
CANADA        
Segment Reporting Information [Line Items]        
Net sales $ 6,768 $ 8,145 $ 11,995 $ 13,996