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Note 2 - Summary of Significant Accounting Policies (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Accounts Receivable, Credit Loss Expense (Reversal)	$ 2,053,000	$ 1,852,000	$ 4,524,000	$ 3,663,000
Accounts Receivable, Allowance for Credit Loss	10,074,000		$ 10,074,000		$ 8,054,000
Number of Reportable Segments			2
General and Administrative Expense	7,226,000	$ 4,995,000	$ 13,390,000	$ 10,648,000
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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Percentage of appreciation added to refundable part of resident's original entry fee if apartment exceeds the original resident's entry fee.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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