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Note 3 - Property and Equipment (Details) (Selling, General and Administrative Expenses [Member], Property and Equipment [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 27, 2014
Sep. 28, 2013
Selling, General and Administrative Expenses [Member] | Property and Equipment [Member]
       
Note 3 - Property and Equipment (Details) [Line Items]        
Impairment of Long-Lived Assets to be Disposed of $ 0 $ 0 $ 0.4 $ 0.6