Note 10 - Investments in Marketable Securities - Available for Sale Marketable Equity Securities (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| NHI Common Stock, Shares (in shares) | 1,630,642 | 1,630,642 |
| NHI Common Stock, Cost | $ 24,734 | $ 24,734 |
| NHI Common Stock, fair value | 154,530 | 162,972 |
| NHI Common Stock [Member] | ||
| NHI Common Stock, fair value | $ 107,019 | $ 124,532 |
| X | ||||||||||
- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of shares of investment owned. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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