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(6) Accrued Expenses - Accrued expenses (Details) - USD ($)
Dec. 26, 2020
Dec. 28, 2019
Payables and Accruals [Abstract]    
Accrued legal and accounting $ 71,671 $ 62,725
Accrued payroll and related costs 626,063 518,015
Accrued other 106,357 234,426
Total $ 804,091 $ 815,166