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Consolidated Balance Sheets (Parenthetical) - USD ($)
Sep. 26, 2015
Sep. 27, 2014
Allowance for doubtful accounts receivable $ 400,248 $ 307,029
Preferred stock, par value $ 0.05 $ 0.05
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares issued 0 0
Class A Common Stock    
Common stock, par value $ 0.05 $ 0.05
Common stock, shares authorized 150,000,000 150,000,000
Common stock, shares issued 13,924,651 13,540,333
Common stock, shares outstanding 13,924,651 13,540,333
Class B Common Stock    
Common stock, par value $ 0.05 $ 0.05
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 6,335,125 6,719,443
Common stock, shares outstanding 6,335,125 6,719,443