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Stockholders' Equity (Preferred And Common Stock Narrative) (Details) (USD $)
 3 Months Ended 6 Months Ended 12 Months Ended 6 Months Ended
Dec. 29, 2012
Jun. 29, 2013
Jun. 30, 2012
Dec. 29, 2012
Dec. 29, 2012
Ascendiant Capital Markets LLC [Member]
Dec. 31, 2011
Ascendiant Capital Markets LLC [Member]
Jun. 29, 2013
Vest After I.P. Funding [Member]
Jun. 29, 2013
Subsequent Event [Member]
Securities Purchase Agreement [Member]
Jun. 29, 2013
Subsequent Event [Member]
Loan Agreement [Member]
Jun. 29, 2013
Subsequent Event [Member]
Vest Immediately [Member]
Jun. 29, 2013
Subsequent Event [Member]
Vest After I.P. Milestone [Member]
Jun. 29, 2013
Subsequent Event [Member]
Vest After I.P. Funding [Member]
Class of Stock [Line Items]                        
Preferred stock, shares authorized   10,000,000                    
Preferred stock, par value   $ 0.001                    
Preferred stock, shares outstanding 0 0   0                
Shares reserved for issuance, value   $ 10,000,000                    
Stock Issued During Period, Value, New Issues 1,500,000             1,000,000        
Proceeds from public offering, net $ 1,300,000 $ 28,000 $ 3,618,000   $ 3,900,000 $ 1,900,000   $ 960,000        
Shares issued during the period 1,685,394       1,312,669 697,470   1,098,902        
Class of Warrant or Right, Outstanding 2,275,282     2,275,282     329,670 1,098,902 1,648,351 989,011 329,670 329,670
Warrants as a percentage of stock issued       135.00%                
Period after which warrants are exercisable       181 days                
Exercise price of Warrants 0.89     0.89       1.00 1.00      
Class of Warrant or Right, Outstanding Term               7 years 7 years