Note 5 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands |
Mar. 31, 2022 |
Dec. 31, 2021 |
Jun. 30, 2021 |
|---|---|---|---|
| Debt Securities, Available-for-sale, Total | $ 0 | ||
| Investments, Total | $ 9,525 | $ 0 | |
| Long-term Debt, Fair Value | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all investments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. No definition available.
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