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Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 28, 2013
Dec. 29, 2012
Consolidated Balance Sheets    
Receivables, allowance for doubtful accounts (in dollars) $ 4,300 $ 17,300
Common Stock
   
Statement    
Common stock, par value (in dollars per share)      
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares issued 5,143,530 4,996,459
Common stock, shares outstanding 5,143,530 4,996,459