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Note 5 - Goodwill (Tables) | 12 Months Ended
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Jun. 30, 2018
Notes Tables |
Schedule of Goodwill [Table Text Block] |
|  | 2018 |  |  | 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 |

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