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Significant Accounting Policies: Balance Sheet Disclosures (Details) - USD ($)
12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Receivables      
Allowance for Doubtful Accounts Receivable, Current $ 600 $ 800  
Restricted Cash      
Restricted cash held in escrow $ 30,000 25,000 $ 50,000
Allowance for Credit Losses      
Delinquent period for charging-off against allowance for credit losses 121 days    
Canadian operations      
Cash Equivalents      
Cash located in banks $ 70,400 $ 77,100