v2.4.0.8
Component of Net Sales by Region (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Segment Reporting Information [Line Items]        
Net sales $ 36,797 $ 35,565 $ 61,652 $ 60,962
USA
       
Segment Reporting Information [Line Items]        
Net sales 28,652 27,425 47,656 46,366
CANADA
       
Segment Reporting Information [Line Items]        
Net sales $ 8,145 $ 8,140 $ 13,996 $ 14,596