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Schedule of Contract With Customer, Asset And Liability (Details) - USD ($)
Dec. 26, 2020
Dec. 28, 2019
Contract Assets And Liabilities    
Contract assets and unbilled receivables $ 3,521,753 $ 921,082
Change in contract assets and unbilled receivables $ 2,600,671  
Percentage of change in contract assets-current 282.00%  
Contract liabilities and billings in excess of revenue earned $ (1,493,847) (796,794)
Change Contract liabilities and billings in excess of revenue earned $ (696,053)  
Percentage Contract liabilities and billings in excess of revenue earned 87.00%  
Contract liabilities-noncurrent $ (5,069) (6,557)
Change in contract liabilities-noncurrent $ 1,488  
Percentage of change in contract liabilities-noncurrent (23.00%)  
Net contract assets $ 2,022,837 $ 117,731
Change in Net contract assets $ 1,905,106  
Percentage of change in Net contract assets 1618.00%