Annual report pursuant to Section 13 and 15(d)

Industry, Segment and Geographic Information - Sales and Assets (Details)

v3.3.1.900
Industry, Segment and Geographic Information - Sales and Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Net sales to unaffiliated customers and identifiable assets by geographic areas                      
Net sales to Unaffiliated Customers $ 99,776 $ 97,653 $ 91,970 $ 92,691 $ 94,123 $ 90,506 $ 84,399 $ 71,730 $ 382,090 $ 340,758 $ 300,390
Identifiable Assets by Geographic Areas 94,082       94,981       94,082 94,981 94,760
USA                      
Net sales to unaffiliated customers and identifiable assets by geographic areas                      
Net sales to Unaffiliated Customers                 336,110 294,274 254,337
Identifiable Assets by Geographic Areas 87,679       87,324       87,679 87,324 87,025
Canada                      
Net sales to unaffiliated customers and identifiable assets by geographic areas                      
Net sales to Unaffiliated Customers                 23,957 23,757 21,602
Identifiable Assets by Geographic Areas $ 6,403       $ 7,657       6,403 7,657 7,735
Rest of the world                      
Net sales to unaffiliated customers and identifiable assets by geographic areas                      
Net sales to Unaffiliated Customers                 $ 22,023 $ 22,727 $ 24,451