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Note 3 - Supplemental Balance Sheet and Cash Flow Information (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Available-for-sale Securities, Total | $ 87,800 | $ 38,200 |
Amortization of Intangible Assets, Total | 61,095 | 58,715 |
Other Assets, Noncurrent, Total | 13,522 | 5,668 |
Developed Technology Rights [Member] | Cost of Sales [Member] |  |  |
Amortization of Intangible Assets, Total | 34,500 | 33,300 | $ 25,300
Trade Names, Customer Relationships, Non-Compete Agreements, and Patents [Member] | Selling, General and Administrative Expenses [Member] |  |  |
Amortization of Intangible Assets, Total | 26,600 | 25,400 | $ 21,600
Other Noncurrent Assets [Member] |  |  |
Inventory, Finished Goods, Net of Reserves, Non-current | 4,646 | 3,239 |
ChemoCentryx, Inc (CCXI) [Member] |  |  |
Available-for-sale Equity Securities, Amortized Cost Basis, Total | $ 6,600 | $ 18,800 |
ChemoCentryx, Inc (CCXI) [Member] |  |  |
Share Price (in dollars per share) | $ 9.30 | $ 57.54 |

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