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Note 7 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Jun. 30, 2017
Cost $ 139,669 $ 135,051
Accumulated amortization (35,268) (32,548)
Intangible assets, net 104,401 102,503
Trademarks [Member]    
Cost 20,413 18,715
Accumulated amortization
Intangible assets, net 20,413 18,715
Customer Relationships [Member]    
Cost 66,868 64,247
Accumulated amortization (30,083) (28,764)
Intangible assets, net 36,785 35,483
Acquired Technology [Member]    
Cost 47,533 47,586
Accumulated amortization (1,855) (826)
Intangible assets, net 45,678 46,760
Other Intangible Assets [Member]    
Cost 4,855 4,503
Accumulated amortization (3,330) (2,958)
Intangible assets, net $ 1,525 $ 1,545