Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Other Income (Expense) (Details Textual)

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Note 11 - Other Income (Expense) (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
CCXI [Member]        
Unrealized Gain (Loss) on Investments, Total $ 28.4 $ 10.7 $ 33.7 $ 6.4