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Note 10 - Income Taxes (Tables)
12 Months Ended
Jun. 30, 2018
Notes Tables  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
   
2018
   
2017
   
2016
 
U.S. Operations
  $
7,525
    $
16,257
    $
23,996
 
Non-U.S. Operations
   
69,727
     
45,675
     
44,529
 
Total
  $
77,252
    $
61,932
    $
68,525
 
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   
2018
   
2017
   
2016
 
Current:
 
 
 
 
 
 
 
 
 
 
 
 
Federal
  $
11,057
    $
2,229
    $
11,014
 
State
   
498
     
230
     
523
 
Non-U.S.
   
21,674
     
13,017
     
11,514
 
Total Current
   
33,229
     
15,476
     
23,051
 
Deferred:
 
 
 
 
 
 
 
 
 
 
 
 
Federal
  $
2,012
    $
2,141
    $
(5,214
)
State
   
1,091
     
(290
)    
(1,060
)
Non-U.S.
   
4,288
     
(1,972
)    
(482
)
Total Deferred
   
7,391
     
(121
)    
(6,756
)
Total
  $
40,620
    $
15,355
    $
16,295
 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
2018
   
2017
   
2016
 
Provision at statutory tax rate
   
28.0
%    
35.0
%    
35.0
%
State taxes
   
1.5
%    
(0.1
%)    
(0.5
%)
Impact of foreign operations
   
(0.9
%)    
(8.0
%)    
(6.7
%)
Federal tax credits
   
(1.2
%)    
(1.3
%)    
(1.8
%)
Tax Reform
   
16.7
%    
0.0
%    
0.0
%
Cash repatriation
   
9.5
%    
0.0
%    
0.0
%
Contributions, net
   
0.0
%    
0.0
%    
(1.3
%)
Other
   
(1.0
%)    
(0.8
%)    
(0.9
%)
Effective income tax provision
   
52.6
%    
24.8
%    
23.8
%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
2018
   
2017
 
Deferred tax liabilities:
               
Depreciation and amortization
  $
(39,775
)   $
(55,041
)
Withholding Taxes
   
(7,833
)    
-
 
Other
   
-
     
-
 
Total deferred tax liability
  $
(47,608
)   $
(55,041
)
                 
Deferred tax assets:
               
Accrued compensation
  $
2,657
    $
4,127
 
Accrued expenses and reserves
   
4,808
     
6,886
 
Pension
   
13,522
     
26,309
 
Inventory
   
1,613
     
2,677
 
Other
   
452
     
939
 
Net operating loss and credit carry forwards
   
8,668
     
6,773
 
Total deferred tax asset
  $
31,720
    $
47,711
 
                 
Less: Valuation allowance
   
(3,482
)    
(1,530
)
Net deferred tax asset (liability)
  $
(19,370
)   $
(8,860
)
Schedule of Provision for Income Taxes [Table Text Block]
   
2018
   
2017
   
2016
 
Continuing operations
  $
40,620
    $
15,355
    $
16,295
 
Discontinued operations
   
(15
)    
(27
)    
(55
)
Total Provision
  $
40,605
    $
15,328
    $
16,240
 
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
   
2018
   
2017
   
2016
 
Beginning Balance
  $
2,991
    $
2,978
    $
1,054
 
Additions based on tax positions related to the current year
   
12
     
12
     
2,125
 
Additions for tax positions of prior years
   
-
     
1
     
-
 
Reductions for tax positions of prior years
   
-
     
-
     
(201
)
Ending Balance
  $
3,003
    $
2,991
    $
2,978
 
Summary of Income Tax Examinations [Table Text Block]
Country
 
Years Ending June 30,
 
United States
   
2015
to
2018
 
Canada
   
2014
to
2018
 
Germany
   
2016
to
2018
 
Ireland
   
2016
to
2018
 
Portugal
   
2014
to
2018
 
United Kingdom
   
2016
to
2018