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Note 5 - Stock-Based Compensation (Tables)
3 Months Ended
Mar. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   

Shares

   

Weighted Average

Exercise Price

 

Outstanding at December 29, 2013

    184,000     $ 8.18  

Granted

    0       0  

Exercised

    15,000       4.31  

Forfeited or canceled

    0       0  

Outstanding at March 30, 2014

    169,000     $ 8.51  
                 

Exercisable at March 30, 2014

    169,000     $ 8.51  
Cash Proceeds and Intrinsic Value Related to Stock Options Exercised [Table Text Block]
   

Three Months Ended

 
   

March 30, 2014

   

March 31, 2013

 
   

(In thousands)

 

Proceeds from stock options exercised

  $ 105     $ 868  

Intrinsic value of stock options exercised

  $ 224     $ 581  
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
   

Shares

   

Weighted Average

Grant Date

Fair Value

 

Outstanding at December 29, 2013

    1,707,500     $ 15.62  

Granted

    487,500       21.28  

Vested

    522,000       16.28  

Forfeited or canceled

    202,500       17.02  

Outstanding at March 30, 2014

    1,470,500     $ 17.07