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Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($)
 12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Income Tax Disclosure [Abstract]      
State $ 1,000 $ 4,000
Foreign 128,000 129,000 104,000
Total current provision 129,000 129,000 108,000
Federal (3,367,000) (1,075,000) (5,165,000)
State (928,000) (321,000) (2,341,000)
Foreign 318,000 (19,000) (56,000)
Change in valuation allowance 3,977,000 1,415,000 7,562,000
Total deferred provision
Total provision for income taxes $ 129,000 $ 129,000 $ 108,000