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Note 4 - Stock-based Compensation (Tables)
9 Months Ended
Sep. 29, 2012
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
   
Restricted
Stock
   
Options
 
Outstanding, December 31, 2011
    1,438,131       1,210,816  
Granted
    278,180       228  
Vested
    (804,565 )      
Exercised
           
Forfeited
    (64,598 )     (44,694 )
Canceled or expired
           
Outstanding, September 29, 2012
    847,148       1,166,350