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Note 2 - Reclassifications and Restatement (Tables)
3 Months Ended
Mar. 30, 2013
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]
   
March 31, 2012
 
Consolidated Statements of Net Income and Comprehensive Income
 
As Previously
Reported
   
Adjustment
   
As Adjusted
 
                   
Impairment and equity in net loss of unconsolidated affiliate
  $     $ 525     $ 525  
Income before income taxes
    25,300       (525 )     24,775  
Income taxes
    7,411       (199 )     7,212  
Net income
    17,889       (326 )     17,563  
Basic Earnings per share
  $ 0.83     $ (0.02 )   $ 0.81  
Diluted Earnings per share
  $ 0.81     $ (0.01 )   $ 0.80  
Comprehensive income
  $ 27,031     $ (326 )   $ 26,705  
   
March 31, 2012
 
Consolidated Statements of Cash Flows
 
As Previously
Reported
   
Adjustment
   
As Adjusted
 
                   
Net income
  $ 17,889     $ (326 )   $ 17,563  
Impairment and equity in net loss of unconsolidated affiliate
          525       525  
Accrued taxes
    1,474       (199 )     1,275