Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Fair Value Measurements (Details Textual)

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Note 5 - Fair Value Measurements (Details Textual) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Mar. 31, 2023
Jun. 30, 2022
Unrealized Gain (Loss) on Investments $ 0 $ 0
Long-Term Debt, Fair Value $ 0 $ 0