Annual report pursuant to Section 13 and 15(d)

Segment Reporting (Details Textual)

v3.8.0.1
Segment Reporting (Details Textual)
$ in Thousands
12 Months Ended
Dec. 05, 2016
Segment
Dec. 30, 2017
USD ($)
Segment
Dec. 31, 2016
USD ($)
Jan. 02, 2016
Segment
Segment Reporting Information [Line Items]        
Number of operating segments | Segment   2   1
Number of reportable segments | Segment 2     1
Amortization of acquisition-related inventory step-up   $ 1,774 $ 1,021  
Corporate and Other [Member]        
Segment Reporting Information [Line Items]        
Unallocated costs   1,430    
Amortization of acquisition-related inventory step-up   1,774    
Amortization of Acquisition-related intangible assets   $ 8,182