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Note 12 - Segment Data (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Sep. 28, 2014
Sep. 29, 2013
Note 12 - Segment Data (Details) [Line Items]        
Number of Operating Segments     2  
Revenues $ 90,204,000 $ 76,278,000 $ 267,561,000 $ 236,855,000
Intersegment Eliminations [Member]
       
Note 12 - Segment Data (Details) [Line Items]        
Revenues $ 0 $ 0 $ 0 $ 0