Note 15 - Mortgages Payable - Maturities of All Mortgages Payable (Details) - Mortgages Payable and Construction Loans [Member] $ in Millions	Dec. 31, 2021 USD ($)
2022	$ 124.5
2023	63.6
2024	8.1
2025	54.3
2026	5.4
Thereafter	183.3
Total	$ 439.2

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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