Annual report pursuant to Section 13 and 15(d)

Note 13 - Commitments and Contingencies (Details Textual)

v3.19.1
Note 13 - Commitments and Contingencies (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 30, 2018
Dec. 31, 2017
Jan. 01, 2017
Operating Leases, Rent Expense, Total $ 2,947 $ 2,412 $ 2,296
Insurance Installments [Member]      
Purchase Obligation, Due in Next Twelve Months 215 169 187
Open Non-cancellable Purchase Orders for Raw Materials [Member]      
Purchase Obligation, Due in Next Twelve Months 39,951 14,391 13,602
Indemnification Agreement [Member]      
Loss Contingency Accrual, Ending Balance 0    
Cost of Sales [Member]      
Operating Leases, Rent Expense, Net, Total 2,257 1,519 1,558
Selling, General and Administrative Expenses [Member]      
Operating Leases, Rent Expense, Net, Total $ 690 $ 893 $ 738