Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details Textual)

v3.10.0.1
Commitments and Contingencies (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]      
Operating Leases, Rent Expense, Net $ 2,751 $ 1,197 $ 584