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Note 8 - Earnings Per Share (Tables)
3 Months Ended
Mar. 29, 2014
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

For the Three Months Ended

 

(in thousands except per share amounts)

 

March 29, 2014

   

March 30, 2013

 
           

(Restated)

 

Net income as reported

  $ 25,389     $ 11,488  

Less: Distributed earnings available to participating securities

          (9 )

Less: Undistributed earnings available to participating securities

          (7 )

Numerator for basic earnings per share —

               

Undistributed and distributed earnings available to common shareholders

  $ 25,389     $ 11,472  

Add: Undistributed earnings allocated to participating securities

          7  

Less: Undistributed earnings reallocated to participating securities

          (6 )

Numerator for diluted earnings per share —

               

Undistributed and distributed earnings available to common shareholders

  $ 25,389     $ 11,473  

Denominator for basic earnings per share —

               

Weighted-average shares

    22,492       22,095  

Effect of dilutive securities:

               

Common stock equivalents

    225       271  

Denominator for diluted earnings per share —

               

Adjusted for weighted-average shares & assumed conversions

    22,717       22,366  

Basic earnings per share

  $ 1.13     $ 0.52  

Diluted earnings per share

  $ 1.12     $ 0.51