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Note 14 - Mortgages and Construction Loan Payable (Details Textual) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2020	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument, Unamortized Discount (Premium), Net, Total		$ 3.5
Construction Loans [Member]
Debt Instrument, Interest Rate, Effective Percentage			3.56%
Construction Loans [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.80%
Mortgage Debt Encumbered Operating Property [Member]
Repayments of Long-term Debt, Total		92.0	$ 6.6
Liabilities, Fair Value Adjustment		$ 0.4	$ 0.1
Number of Real Estate Properties		4	3
Debt Instrument, Increase (Decrease), Net, Total			$ 7.0
Debt Instrument, Decrease, Forgiveness			2.8
Mortgages [Member]
Debt Issuance Costs, Net, Total		$ 0.6	$ 1.5

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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