Annual report pursuant to Section 13 and 15(d)

Leases - Additional Information (Details)

v3.20.1
Leases - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 28, 2019
Dec. 30, 2018
Dec. 29, 2018
Lessee Lease Description [Line Items]      
Right of use asset - operating leases $ 1,894 $ 1,600 $ 0
Operating lease liability 1,929 $ 1,600  
Payment for operating leases 1,284    
Right-of-use assets in exchange for lease liabilities 1,400    
Topic 842      
Lessee Lease Description [Line Items]      
Adjustments to retained earnings $ 63