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Note 5 - Goodwill - Changes to Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Balance at beginning of year $ 260,629 $ 175,293
Accumulated impairment losses 17,939 17,939
Balance at beginning of year, net 242,690 157,354
Acquisitions 7,655 85,561
Foreign currency translation 1,417 (225)
Balance at end of year $ 251,762 $ 242,690