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Note 9 - Earnings Per Share (Tables)
12 Months Ended
Jun. 30, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
  

Year Ended June 30,

 
  

2020

  2019  2018 

Earnings per share – basic:

            

Net income

 $229,296  $96,072  $126,150 

Income allocated to participating securities

  (224

)

  (105

)

  (108

)

Income available to common shareholders

 $229,072  $95,967  $126,042 

Weighted-average shares outstanding – basic

  38,201   37,781   37,476 

Earnings per share – basic

 $6.00  $2.54  $3.36 
             

Earnings per share – diluted:

            

Net income

 $229,296  $96,072  $126,150 

Income allocated to participating securities

  (224

)

  (105

)

  (108

)

Income available to common shareholders

 $229,072  $95,967  $126,042 

Weighted-average shares outstanding – basic

  38,201   37,781   37,476 

Dilutive effect of stock options and restricted stock units

  1,200   1,111   579 

Weighted-average common shares outstanding – diluted

  39,401   38,892   38,055 

Earnings per share – diluted

 $5.82  $2.47  $3.31