Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting (Details 2)

v3.8.0.1
Segment Reporting (Details 2) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Apr. 01, 2017
Dec. 30, 2017
Net sales      
Net sales $ 97,318 $ 81,353  
Tangible long-lived assets      
Tangible long-lived assets 93,922   $ 91,931
Americas [Member]      
Net sales      
Net sales 56,471 47,288  
Tangible long-lived assets      
Tangible long-lived assets 78,099   78,429
Asia/Pacific [Member]      
Net sales      
Net sales 18,496 13,965  
Tangible long-lived assets      
Tangible long-lived assets 7,677   5,699
Europe/Middle East/Africa [Member]      
Net sales      
Net sales 22,351 $ 20,100  
Tangible long-lived assets      
Tangible long-lived assets $ 8,146   $ 7,803