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Note 1 - Basis of Presentation (Details Textual) - USD ($)
$ in Thousands
Jun. 27, 2020
Dec. 28, 2019
Accounts Receivable, after Allowance for Credit Loss, Current, Total $ 39,519 $ 59,760
Assets, Current, Total 43,646 70,657
Liabilities, Current, Total 21,152 $ 21,408
Excess of Current Assets over Current Liabilities $ 22,500