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Note 2 - Summary of Significant Accounting Policies (Details Textual) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($)
Accounts Receivable, Credit Loss Expense (Reversal) | $ 2,574,000 | $ 1,668,000 | $ 7,098,000 | $ 5,331,000 |
Accounts Receivable, Allowance for Credit Loss | 10,859,000 |  | $ 10,859,000 |  | $ 8,054,000
Number of Reportable Segments |  |  | 2 |  |
General and Administrative Expense | 6,288,000 | $ 5,661,000 | $ 19,678,000 | $ 16,309,000 |
Continuing Care Retirement Communities, Refund Obligation | $ 1,606,000 |  | $ 1,606,000 |  | $ 1,606,000
Refundable Advance Fees [Member] |  |  |  |  |
Nonrefundable Resident Entry Fee Percentage |  |  | 10.00% |  |
Original Entry Fee [Member] |  |  |  |  |
Refundable Resident Entry Fee Percentage |  |  | 90.00% |  |
Appreciation [Member] |  |  |  |  |
Appreciation of Apartment Over Original Residents Entry Fee Percentage |  |  | 40.00% |  |
Minimum [Member] |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 2 years |  | 2 years |  |
Minimum [Member] | Building and Building Improvements [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 20 years |  | 20 years |  |
Minimum [Member] | Equipment and Furniture [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 3 years |  | 3 years |  |
Maximum [Member] |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 15 years |  | 15 years |  |
Maximum [Member] | Building and Building Improvements [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 40 years |  | 40 years |  |
Maximum [Member] | Equipment and Furniture [Member] |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 15 years |  | 15 years |  |

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