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Note 11 - Net Income Per Share of Class A and Class B Common Stock (Tables)
 9 Months Ended
Sep. 30, 2015
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Three Months Ended
September 30
,
 
2015
 
 
2014
 
Basic EPS from Continuing Operations
 
Class A
 
 
Class B
 
 
Class A
 
 
Class B
 
Numerator:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Income from continuing operations applicable to common stockholders
   $ 39,162     $ 4,229     $ 31,149     $ 3,388  
Distributed income applicable to common stockholders
     (4,745 )     (512 )     (3,765 )     (409 )
Basic undistributed income from continuing operations applicable to common stockholders
   $ 34,417     $ 3,717     $ 27,384     $ 2,979  
                                 
Denominator:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average number of shares outstanding used to calculate basic income per share
    23,727       2,562       23,556       2,562  
                                 
Basic income per share from continuing operations applicable to common stockholders
   $ 1.65     $ 1.65     $ 1.32     $ 1.32  
Basic distributed income per share from continuing operations applicable to common stockholders
     (0.20 )     (0.20 )     (0.16 )     (0.16 )
Basic undistributed income per share from continuing operations applicable to common stockholders
   $ 1.45     $ 1.45     $ 1.16     $ 1.16  
Three Months Ended
September 30
,
 
2015
 
 
2014
 
Diluted EPS from Continuing Operations
 
Class A
 
 
Class B
 
 
Class A
 
 
Class B
 
Numerator:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Distributed income applicable to common stockholders
   $ 4,745     $ 512     $ 3,765     $ 409  
Reallocation of distributed income as a result of conversion of dilutive stock options
     3       (3 )     3       (3 )
Reallocation of distributed income due to conversion of Class B to Class A common shares outstanding
     509       -       406       -  
Diluted distributed income applicable to common stockholders
   $ 5,257     $ 509     $ 4,174     $ 406  
Undistributed income from continuing operations applicable to common stockholders
   $ 34,417     $ 3,717     $ 27,384     $ 2,979  
Reallocation of undistributed income as a result of conversion of dilutive stock options
     27       (27 )     28       (28 )
Reallocation of undistributed income due to conversion of Class B to Class A
     3,690       -       2,951       -  
Diluted undistributed income from continuing operations applicable to common stockholders
   $ 38,134     $ 3,690     $ 30,363     $ 2,951  
Denominator:
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average number of shares outstanding used to calculate basic income per share from continuing operations
   23,727     2,562     23,556     2,562  
Weighted average number of shares from stock options
  191     -     241     -  
Conversion of Class B to Class A common shares outstanding
   2,562     -     2,562     -  
Weighted average number of shares outstanding used to calculate diluted income per share from continuing operations
  26,480     2,562     26,359     2,562  
                         
Diluted income per share from continuing operations applicable to common stockholders
 $ 1.64   $ 1.64   $ 1.31   $ 1.31  
Diluted distributed income per share from continuing operations applicable to common stockholders
   (0.20 )   (0.20 )   (0.16 )   (0.16 )
Diluted undistributed income per share from continuing operations applicable to common stockholders
 $ 1.44   $ 1.44   $ 1.15   $ 1.15  
Three Months Ended
September 30
,
 
2015
 
 
2014
 
Diluted EPS
 
Class A
 
 
Class B
 
 
Class A
 
 
Class B
 
Antidilutive Securities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Shares issuable pursuant to stock options not included since they were antidilutive
     18       -       13       -  
Nine Months Ended
September 30
,
 
2015
 
 
2014
 
Basic EPS from Continuing Operations
 
Class A
 
 
Class B
 
 
Class A
 
 
Class B
 
Numerator:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Income from continuing operations applicable to common stockholders
   $ 122,092     $ 13,175     $ 85,124     $ 9,277  
Distributed income applicable to common stockholders
     (13,303 )     (1,436 )     (10,578 )     (1,153 )
Basic undistributed income from continuing operations applicable to common stockholders
   $ 108,789     $ 11,739     $ 74,546     $ 8,124  
                                 
Denominator:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average number of shares outstanding used to calculate basic income per share
    23,742       2,562       23,509       2,562  
                                 
Basic income per share from continuing operations applicable to common stockholders
   $ 5.14     $ 5.14     $ 3.62     $ 3.62  
Basic distributed income per share from continuing operations applicable to common stockholders
     (0.56 )     (0.56 )     (0.45 )     (0.45 )
Basic undistributed income per share from continuing operations applicable to common stockholders
   $ 4.58     $ 4.58     $ 3.17     $ 3.17  
Nine Months Ended
September 30
,
 
2015
 
 
2014
 
Diluted EPS from Continuing Operations
 
Class A
 
 
Class B
 
 
Class A
 
 
Class B
 
Numerator:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Distributed income applicable to common stockholders
   $ 13,303     $ 1,436     $ 10,578     $ 1,153  
Reallocation of distributed income as a result of conversion of dilutive stock options
     11       (11 )     12       (12 )
Reallocation of distributed income due to conversion of Class B to Class A common shares outstanding
     1,425       -       1,141       -  
Diluted distributed income applicable to common stockholders
   $ 14,739     $ 1,425     $ 11,731     $ 1,141  
Undistributed income from continuing operations applicable to common stockholders
   $ 108,789     $ 11,739     $ 74,546     $ 8,124  
Reallocation of undistributed income as a result of conversion of dilutive stock options
     86       (86 )     82       (82 )
Reallocation of undistributed income due to conversion of Class B to Class A
     11,653       -       8,042       -  
Diluted undistributed income from continuing operations applicable to common stockholders
   $ 120,528     $ 11,653     $ 82,670     $ 8,042  
                                 
Denominator:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average number of shares outstanding used to calculate basic income per share from continuing operations
     23,742       2,562       23,509       2,562  
Weighted average number of shares from stock options
    196       -       266       -  
Conversion of Class B to Class A common shares outstanding
     2,562       -       2,562       -  
Weighted average number of shares outstanding used to calculate diluted income per share from continuing operations
    26,500       2,562       26,337       2,562  
                                 
Diluted income per share from continuing operations applicable to common stockholders
   $ 5.10     $ 5.10     $ 3.58     $ 3.58  
Diluted distributed income per share from continuing operations applicable to common stockholders
     (0.56 )     (0.56 )     (0.45 )     (0.45 )
Diluted undistributed income per share from continuing operations applicable to common stockholders
   $ 4.54     $ 4.54     $ 3.13     $ 3.13  
Nine Months Ended
September 30
,
 
2015
 
 
2014
 
Diluted EPS
 
Class A
 
 
Class B
 
 
Class A
 
 
Class B
 
Antidilutive Securities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Shares issuable pursuant to stock options not included since they were antidilutive
     17       -       13       -