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Note 2 - Summary of Significant Accounting Policies (Details Textual) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Number of Reportable Segments |  |  | 2 |  |
Number of Operating Segments |  |  | 2 |  |
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property |  |  | $ 3,606,000 | $ (0) |
General and Administrative Expense | $ 6,250,000 | $ 6,288,000 | 19,909,000 | $ 19,678,000 |
Continuing Care Retirement Communities, Refund Obligation | $ 1,474,000 |  | $ 1,474,000 |  | $ 1,474,000
TENNESSEE | Multi Family Development Investments [Member] |  |  |  |  |
Equity Method Investment, Ownership Percentage | 55.00% |  | 55.00% |  |
Minimum [Member] |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 2 years |  | 2 years |  |
Maximum [Member] |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 15 years |  | 15 years |  |
Building and Building Improvements [Member] | Minimum [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 20 years |  | 20 years |  |
Building and Building Improvements [Member] | Maximum [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 40 years |  | 40 years |  |
Equipment and Furniture [Member] | Minimum [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 3 years |  | 3 years |  |
Equipment and Furniture [Member] | Maximum [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 15 years |  | 15 years |  |
Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Exchange [Member] | Land [Member] |  |  |  |  |
Property, Plant, and Equipment, Fair Value Disclosure | $ 5,625,000 |  | $ 5,625,000 |  |
Inventory, Land, Held-for-Sale | $ 2,019,000 |  | 2,019,000 |  |
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property |  |  | $ 3,606,000 |  |

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