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Note 1 - Basis of Presentation (Details Textual) - USD ($) $ in Thousands | Sep. 26, 2020 | Dec. 28, 2019
--- | --- | ---
Accounts Receivable, after Allowance for Credit Loss, Current, Total | $ 32,986 | $ 59,760
Assets, Current, Total | 36,121 | 70,657
Liabilities, Current, Total | 19,930 | $ 21,408
Excess of Current Assets over Current Liabilities | $ 16,200 |

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