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Note 4 - Stock-based Compensation (Tables)
3 Months Ended
Mar. 30, 2013
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
   
Restricted
Stock
   
Options
 
Outstanding, December 29, 2012
    860,325        1,155,239  
Granted
    140,940         
Vested
    312,606         
Exercised
           
Forfeited
    8,697        2,118  
Canceled or expired
           
Outstanding, March 30, 2013
    679,962        1,153,121