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Significant Accounting Policies (Tables)
9 Months Ended
Sep. 27, 2014
Accounting Policies [Abstract]  
Inventories
    September 27, 2014     December 28, 2013  
Reference standards   $ 1,715,507     $ 1,769,160  
Bulk ingredients     866,509       694,965  
      2,582,016       2,464,125  
Less valuation allowance     295,930       260,000  
    $ 2,286,086     $ 2,204,125