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Note 15 - Comprehensive Income (Loss) (Tables)
 3 Months Ended
Sep. 30, 2018
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
September
3
0
,
201
8
    
June 30,
201
8
  
Foreign currency translation adjustment
   $
(31,035
 )   $
(25,013
 )
Unrealized pension losses, net of tax
    
(93,957
 )    
(95,112
 )
Unrealized losses on derivative instruments, net of tax
    
(2,113
 )    
(1,734
 )
Total
   $
(127,105
 )   $
(121,859
 )