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Note 16 - Income Taxes (Tables)
6 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
  

Three Months Ended

  

Six Months Ended

 
  

December 31

  

December 31

 
  

2021

  

2020

  

2021

  

2020

 
Reconciliation of effective tax rate:                
                 
Provision for income taxes at the anticipated annual tax rate  23.8 %  25.0 %  24.0 %  24.5 %
Uncertain tax positions  (3.9)  (4.8)  (1.5)  (2.2)
Tax rate changes  -   -   -   (7.0)
Share-based compensation  0.1   (0.2)  (0.3)  0.9 
Effective tax rate  20.0 %  20.0  22.2 %  16.2 %