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Note 10 - Net Income Per Share of Class A and Class B Common Stock (Tables)
 3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Three Months Ended March 31,

 

2015

   

2014

 

Basic EPS from Continuing Operations

 

Class A

   

Class B

   

Class A

   

Class B

 

Numerator:

                               

Income from continuing operations applicable to common stockholders

  $ 36,690     $ 3,963     $ 22,258     $ 2,436  

Distributed income applicable to common stockholders

    (3,805 )     (411 )     (3,045 )     (333 )

Basic undistributed income from continuing operations applicable to common stockholders

  $ 32,885     $ 3,552     $ 19,213     $ 2,103  
                                 

Denominator:

                               

Weighted average number of shares outstanding used to calculate basic income per share

    23,721       2,562       23,411       2,562  
                                 

Basic income per share from continuing operations applicable to common stockholders

  $ 1.55     $ 1.55     $ 0.95     $ 0.95  

Basic distributed income per share from continuing operations applicable to common stockholders

    (0.16 )     (0.16 )     (0.13 )     (0.13 )

Basic undistributed income per share from continuing operations applicable to common stockholders

  $ 1.39     $ 1.39     $ 0.82     $ 0.82  

Three Months Ended March 31,

 

2015

   

2014

 

Diluted EPS from Continuing Operations

 

Class A

   

Class B

   

Class A

   

Class B

 

Numerator:

                               

Distributed income applicable to common stockholders

  $ 3,805     $ 411     $ 3,045     $ 333  

Reallocation of distributed income as a result of conversion of dilutive stock options

    4       (4 )     4       (4 )

Reallocation of distributed income due to conversion of Class B to Class A common shares outstanding

    407       -       329       -  

Diluted distributed income applicable to common stockholders

  $ 4,216     $ 407     $ 3,378     $ 329  

Undistributed income from continuing operations applicable to common stockholders

  $ 32,885     $ 3,552     $ 19,213     $ 2,103  

Reallocation of undistributed income as a result of conversion of dilutive stock options

    32       (32 )     28       (28 )

Reallocation of undistributed income due to conversion of Class B to Class A

    3,520       -       2,075       -  

Diluted undistributed income from continuing operations applicable to common stockholders

  $ 36,437     $ 3,520     $ 21,316     $ 2,075  
                                 

Denominator:

                               

Weighted average number of shares outstanding used to calculate basic income per share from continuing operations

    23,721       2,562       23,411       2,562  

Weighted average number of shares from stock options

    236       -       347       -  

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

    26,519       2,562       26,320       2,562  
                                 

Diluted income per share from continuing operations applicable to common stockholders

  $ 1.53     $ 1.53     $ 0.94     $ 0.94  

Diluted distributed income per share from continuing operations applicable to common stockholders

    (0.16 )     (0.16 )     (0.13 )     (0.13 )

Diluted undistributed income per share from continuing operations applicable to common stockholders

  $ 1.37     $ 1.37     $ 0.81     $ 0.81  

Three Months Ended March 31,

 

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

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