XML 42 R32.htm IDEA: XBRL DOCUMENT v3.5.0.2
Geographic And Group Information (Geographic Revenue) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Oct. 02, 2015
Sep. 30, 2016
Oct. 02, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]        
Total revenue $ 74,118 $ 67,217 $ 218,509 $ 194,586
North America [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Total revenue 64,136 57,060 188,666 161,025
International (Primarily European Countries) [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Total revenue $ 9,982 $ 10,157 $ 29,843 $ 33,561