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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Changes in the Allowance for Doubtful Accounts) (Details) - USD ($)
12 Months Ended
Dec. 30, 2018
Dec. 31, 2017
Dec. 25, 2016
Allowance for Doubtful Accounts Receivable [Roll Forward]      
Allowance at the beginning of the period $ 473,573 $ 473,573  
Provision for doubtful accounts 40,618 760,633 $ 389,319
Accounts written off (45,958) (760,633)  
Allowance at the end of the period $ 468,233 $ 473,573 $ 473,573