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Schedule II - Supplemental Schedule Of Valuation And Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($)
12 Months Ended
Sep. 24, 2016
Sep. 26, 2015
Sep. 27, 2014
Valuation and Qualifying Accounts Disclosure [Line Items]      
BALANCE AT BEGINNING OF YEAR $ 400,248 $ 307,029 $ 772,893
CHARGED TO COST AND EXPENSES   250,000  
DEDUCTIONS [1] 41,955 156,781 465,864
BALANCE AT END OF YEAR $ 358,293 $ 400,248 $ 307,029
[1] Uncollectible accounts written off, net of recoveries.