Note 11 - Other Income (Expense) (Details Textual) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| CCXI [Member] | ||
| Unrealized Gain (Loss) on Investments, Total | $ 5.3 | $ (4.4) |
| X | ||||||||||
- Definition Amount of unrealized gain (loss) on investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
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