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Note 8 - Intangible Assets
 6 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
Intangible Assets Disclosure [Text Block]
8
)     Intangible Assets
 
Intangible assets consist of the following (in thousands):
 
   
Customer
Relationships
    
Tradenames
(Indefinite-lived)
    
Developed
Technology
    
Other
    
Total
  
December 31, 2018
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Cost
   $
72,643
     $
19,088
     $
48,816
     $
5,642
     $
146,189
  
Accumulated amortization
    
(20,974
 )    
-
      
(6,666
 )    
(3,054
 )    
(30,694
 )
Balance, December 31, 2018
   $
51,669
     $
19,088
     $
42,150
     $
2,588
     $
115,495
  
                                         
June 30, 2018
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Cost
   $
48,285
     $
11,102
     $
48,281
     $
4,025
     $
111,693
  
Accumulated amortization
    
(19,134
 )    
-
      
(4,709
 )    
(2,912
 )    
(26,755
 )
Balance, June 30, 2018
   $
29,151
     $
11,102
     $
43,572
     $
1,113
     $
84,938
  
 
Amortization expense for the
three
months ended
December 31, 2018
and
2017
was
$3.0
million and
$2.2
million, respectively. Amortization expense for the
six
months ended
December 31, 2018
and
2017
was
$4.7
million and
$4.2
million, respectively. At
December 31, 2018,
amortization expense of intangible assets is estimated to be
$5.7
million for the remainder of fiscal year
2019,
$10.9
million in
2020,
$10.2
million in
2021,
$9.6
million in
2022,
$8.8
million in
2023
and
$50.3
 million thereafter.