XML 50 R37.htm IDEA: XBRL DOCUMENT v3.21.4
Note 5 - Fair Value Measurements (Details Textual) - USD ($)
$ in Thousands
Dec. 31, 2021
Jun. 30, 2021
Debt Securities, Available-for-sale, Total $ 0 $ 0
Long-term Debt, Fair Value $ 0 $ 0