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Geographic Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales $ 67,315 $ 70,199 $ 69,348 $ 69,711 $ 64,961 $ 70,243 $ 70,726 $ 69,904 $ 276,573 $ 275,834 $ 285,693
Long-Lived Assets 37,466       36,240       37,466 36,240 42,098
United States                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales                 250,824 251,129 257,428
Long-Lived Assets 30,041       33,813       30,041 33,813 39,681
Canada                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net sales                 25,749 24,705 28,265
Long-Lived Assets $ 7,425       $ 2,427       $ 7,425 $ 2,427 $ 2,417