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Leasehold Improvements and Equipment (Tables)
6 Months Ended
Jun. 29, 2013
Leasehold Improvements And Equipment  
Leasehold Improvements and Equipment
    June 29, 2013     December 29, 2012  
             
Laboratory equipment   $ 2,563,238     $ 2,439,688  
Leasehold improvements     403,971       403,971  
Computer equipment     370,692       363,739  
Furniture and fixtures     18,313       18,313  
Office equipment     7,877       7,877  
Construction in progress     186,439       106,080  
      3,550,530       3,339,668  
Less accumulated depreciation     2,537,567       2,403,242  
    $ 1,012,963     $ 936,426