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Schedule II - Supplemental Schedule Of Valuation And Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($)
12 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 24, 2016
Valuation and Qualifying Accounts Disclosure [Line Items]      
BALANCE AT BEGINNING OF YEAR $ 305,580 $ 358,293 $ 400,248
CHARGED TO COSTS AND EXPENSES 269,736 172,846  
DEDUCTIONS [1] 141,961 225,559 41,955
BALANCE AT END OF YEAR $ 433,355 $ 305,580 $ 358,293
[1] Uncollectible accounts written off, net of recoveries.