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(7) Accrued Expenses - Accrued expenses (Details) - USD ($)
Mar. 27, 2021
Dec. 26, 2020
Payables and Accruals [Abstract]    
Accrued legal and accounting $ 42,219 $ 71,671
Accrued payroll and related expenses 412,923 626,063
Accrued other 76,406 106,357
Total Accrued Expenses $ 531,548 $ 804,091