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Contract Assets and Liabilities (Tables)
12 Months Ended
Dec. 26, 2020
Contract Assets And Liabilities  
Schedule of Contract With Customer, Asset And Liability

Net contract assets (liabilities) consisted of the following:

   December 26, 2020   December 28, 2019   $ Change   % Change 
Contract assets and unbilled receivables  $3,521,753   $921,082   $2,600,671    282%
Contract liabilities and billings in excess of revenue earned   (1,493,847)   (796,794)   (696,053)   87%
Contract liabilities, noncurrent   (5,069)   (6,557)   1,488    (23)%
Net contract assets  $2,022,837   $117,731   $1,905,106    1618%