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Note D - Other Comprehensive (Loss) Income (Tables)
9 Months Ended
Mar. 31, 2018
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Three Months Ended
   
Nine Months Ended
 
   
March 31, 2018
   
March 31, 2018
 
   
 
 
 
 
Unrealized
   
 
 
 
 
 
 
 
 
Unrealized
   
 
 
 
   
Defined
   
Gains
   
 
 
 
 
Defined
   
Gains
   
 
 
 
   
Benefit
   
(Losses) on
   
 
 
 
 
Benefit
   
(Losses) on
   
 
 
 
   
Pension
   
Cash Flow
   
 
 
 
 
Pension
   
Cash Flow
   
 
 
 
   
Plan
   
Hedges
   
Total
   
Plan
   
Hedges
   
Total
 
Beginning Balance
  $
(491
)
  $
(1,745
)
  $
(2,236
)
  $
(491
)
  $
(414
)
  $
(905
)
OCI/OCL before reclassifications
   
-
     
(987
)
   
(987
)
   
-
     
(3,430
)
   
(3,430
)
Amounts reclassified from OCI
   
-
     
768
     
768
     
-
     
1,133
     
1,133
 
Tax effect of OCI activity
   
-
     
-
     
-
     
-
     
747
     
747
 
Net current period OCI/OCL
   
-
     
(219
)
   
(219
)
   
-
     
(1,550
)
   
(1,550
)
Ending Balance
  $
(491
)
  $
(1,964
)
  $
(2,455
)
  $
(491
)
  $
(1,964
)
  $
(2,455
)
   
Three Months Ended
   
Nine Months Ended
 
   
March 31, 2017
   
March 31, 2017
 
   
 
 
 
 
Unrealized
   
 
 
 
 
 
 
 
 
Unrealized
   
 
 
 
   
Defined
   
Gains
   
 
 
 
 
Defined
   
Gains
   
 
 
 
   
Benefit
   
(Losses) on
   
 
 
 
 
Benefit
   
(Losses) on
   
 
 
 
   
Pension
   
Cash Flow
   
 
 
 
 
Pension
   
Cash Flow
   
 
 
 
   
Plan
   
Hedges
   
Total
   
Plan
   
Hedges
   
Total
 
Beginning Balance
  $
(775
)
  $
947
    $
172
    $
(775
)
  $
95
    $
(680
)
OCI/OCL before reclassifications
   
-
     
(322
)
   
(322
)
   
-
     
1,512
     
1,512
 
Amounts reclassified from OCI
   
-
     
(383
)
   
(383
)
   
-
     
(884
)
   
(884
)
Tax effect of OCI activity
   
-
     
254
     
254
     
-
     
(227
)
   
(227
)
Net current period OCI/OCL
   
-
     
(451
)
   
(451
)
   
-
     
401
     
401
 
Ending Balance
  $
(775
)
  $
496
    $
(279
)
  $
(775
)
  $
496
    $
(279
)