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Note 8 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Jun. 30, 2018
Cost $ 138,150 $ 111,693
Accumulated amortization (27,734) (26,755)
Intangible assets, net 110,416 84,938
Trademarks [Member]    
Cost 21,008 11,102
Accumulated amortization
Intangible assets, net 21,008 11,102
Customer Relationships [Member]    
Cost 65,331 48,285
Accumulated amortization (19,333) (19,134)
Intangible assets, net 45,998 29,151
Acquired Technology [Member]    
Cost 47,051 48,281
Accumulated amortization (5,507) (4,709)
Intangible assets, net 41,544 43,572
Other Intangible Assets [Member]    
Cost 4,760 4,025
Accumulated amortization (2,894) (2,912)
Intangible assets, net $ 1,866 $ 1,113