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Note 2 - Summary of Significant Accounting Policies (Details Textual) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($)
Accounts Receivable, Credit Loss Expense (Reversal) | $ 2,471,000 | $ 1,811,000 |
Accounts Receivable, Allowance for Credit Loss | $ 9,174,000 |  | $ 8,054,000
Number of Reportable Segments | 2 |  |
General and Administrative Expense | $ 6,164,000 | $ 5,653,000 |
Continuing Care Retirement Communities, Refund Obligation | $ 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 |  |
Minimum [Member] | Building and Building Improvements [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) | 20 years |  |
Minimum [Member] | Equipment and Furniture [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) | 3 years |  |
Maximum [Member] |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 15 years |  |
Maximum [Member] | Building and Building Improvements [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) | 40 years |  |
Maximum [Member] | Equipment and Furniture [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) | 15 years |  |

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- Definition Amount of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-4 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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