Note 8 - Mortgage and Other Indebtedness - Schedule of Debt Balance (Parenthetical) (Details) - USD ($) $ in Thousands					1 Months Ended	9 Months Ended
		Oct. 28, 2024	Feb. 08, 2024	Dec. 27, 2019	Dec. 31, 2019	Sep. 30, 2024		Dec. 31, 2023	May 05, 2023	May 01, 2023	Nov. 23, 2022	Aug. 01, 2022
Debt Instrument [Line Items]
Exit Fees Outstanding								$ 100
Mezzanine Loan [Member]
Debt Instrument [Line Items]
Debt instrument variable rate						12.00%
Debt Instrument, interest rate increase each year						1.00%
Interest Rate Swap [Member] | Hollinswood Loan [Member]
Debt Instrument [Line Items]
Debt instrument variable rate						4.06%
Current Interest Rate [Member] | Mezzanine Loan [Member]
Debt Instrument [Line Items]
Debt instrument variable rate						5.00%
Capitalized Interest Rate [Member] | Mezzanine Loan [Member]
Debt Instrument [Line Items]
Debt instrument variable rate						7.00%
Basis Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 0		$ 21
Maturity date						Jul. 01, 2024
Basis Term Loan [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument variable rate					6.125%	6.125%
Basis Term Loan [Member] | Interest Rate Cap [Member]
Debt Instrument [Line Items]
Interest rate of loan								8.62%
Basis Term Loan [Member] | Interest Rate Cap [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument variable rate				6.125%
Basis Term Loan [Member] | SOFR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate					3.97%	3.97%
Basis Term Loan [Member] | SOFR [Member] | Interest Rate Cap [Member]
Debt Instrument [Line Items]
Debt instrument variable rate				3.97%
Debt instrument variable rate											4.65%	3.50%
Hollinswood Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument variable rate	[1]					4.06%
Maturity date	[2]					Dec. 01, 2024
Hollinswood Shopping Center Loan [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Maturity date		Mar. 01, 2025
Vista Shops at Golden Mile Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 87		$ 9
Debt instrument variable rate	[1],[3]					6.90%
Maturity date			Feb. 08, 2029			Feb. 08, 2029	[3]
Vista Shops at Golden Mile Loan [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Debt instrument variable rate			6.90%
Crestview Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 38		53
Debt instrument variable rate	[1]					7.83%
Maturity date						Sep. 29, 2026
Lamar Station Plaza West Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 59		73
Debt instrument variable rate	[1]					5.67%
Maturity date						Dec. 10, 2027
Highlandtown Village Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 31		38
Debt instrument variable rate	[1]					6.085%
Maturity date						May 10, 2028
Highlandtown Village Shopping Center Loan [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Debt instrument variable rate									6.085%
Midtown Colonial and Midtown Lamonticello Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 187		0
Debt instrument variable rate	[1],[4]					7.92%
Maturity date	[4]					May 01, 2027
Cromwell Field Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 49		60
Debt instrument variable rate	[1]					6.71%
Maturity date						Dec. 22, 2027
Midtown Row Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 15		19
Debt instrument variable rate	[1]					6.48%
Maturity date						Dec. 01, 2027
Greenwood Village [Member]
Debt Instrument [Line Items]
Interest rate of loan										5.85%
Greenwood Village [Member] | SOFR [Member]
Debt Instrument [Line Items]
Interest rate of loan										5.85%
Coral Hills Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 174		189
Debt instrument variable rate	[1]					6.95%
Maturity date						Oct. 31, 2033
West Broad Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 81		88
Debt instrument variable rate	[1]					7.00%
Maturity date						Dec. 21, 2033
The Shops at Greenwood Village [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 67		$ 80
Debt instrument variable rate	[1]					5.85%
Maturity date						Oct. 10, 2028

[1] Interest rates are as of September 30, 2024.

[2] On October 28, 2024, the Company entered into an agreement to extend the maturity date of this loan to March 1, 2025.

[3] On February 8, 2024, the Company refinanced the Vista Shops at Golden Mile Loan to extend the maturity date to February 8, 2029 and entered into an interest rate swap which fixes the interest rate of the new loan at 6.90%.

[4] This loan was originated on April 30, 2024.