Note 7 - Mortgage and Other Indebtedness - Schedule of Debt Balance (Parenthetical) (Details) - USD ($) $ in Thousands							1 Months Ended	12 Months Ended
		Feb. 08, 2024	Jun. 28, 2023	May 05, 2023	May 01, 2023	Dec. 27, 2019	Dec. 31, 2019	Dec. 31, 2023		Dec. 31, 2022	Nov. 23, 2022	Aug. 01, 2022	Oct. 06, 2021
Debt Instrument [Line Items]
Debt instrument net of discount								$ 600		$ 400
Exit fees outstanding								100		300
Debt instrument variable rate			7.73%
Balance outstanding								$ 233,087		269,474
Interest Rate Swap [Member] | Hollinswood Loan [Member]
Debt Instrument [Line Items]
Debt instrument variable rate								4.06%
Basis Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 21		79
Debt instrument variable rate								8.62%
Interest rate of loan								8.62%
Maturity date								Jul. 01, 2024
Balance outstanding	[1]							$ 8,491		$ 67,086
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%		6.125%
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%
Vista Shops at Golden Mile Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 9		$ 12
Debt instrument variable rate	[2]							7.73%
Maturity date			Jun. 24, 2024					Jun. 24, 2024	[2]
Balance outstanding	[2]							$ 11,252		11,478
Vista Shops at Golden Mile Loan [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Maturity date		Feb. 08, 2029
Vista Shops at Golden Mile Loan [Member] | Interest Rate Swap [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Debt instrument variable rate		6.90%
Interest rate of loan		6.90%
Crestview Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 53		0
Debt instrument variable rate								7.83%
Maturity date								Sep. 29, 2026
Balance outstanding								$ 11,947		0
Lamar Station Plaza West Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 73		95
Debt instrument variable rate								5.67%
Maturity date								Dec. 10, 2027
Balance outstanding								$ 18,927		18,317
Lamont Street Preferred Interest [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 0		29
Debt instrument variable rate	[3]							13.50%
Maturity date	[3]							Sep. 30, 2023
Balance outstanding	[3]							$ 0		4,241
Highlandtown Village Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 38		14
Debt instrument variable rate								4.13%
Debt instrument variable rate	[4]							6.09%
Maturity date				May 10, 2028				May 10, 2028	[4]
Balance outstanding	[4]							$ 8,712		5,241
Highlandtown Village Shopping Center Loan [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Debt instrument variable rate				6.085%
Interest rate of loan				6.085%
Cromwell Field Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 60		77
Debt instrument variable rate								6.71%
Maturity date								Dec. 22, 2027
Balance outstanding								$ 10,597		10,113
Midtown Row Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 19		25
Debt instrument variable rate								6.48%
Maturity date								Dec. 01, 2027
Balance outstanding								$ 75,981		75,975
Spotswood Valley Square Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 0		31
Debt instrument variable rate								4.82%
Maturity date								Jul. 06, 2023
Balance outstanding								$ 0		11,849
Coral Hills Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 189		0
Debt instrument variable rate								6.95%
Maturity date								Oct. 31, 2033
Balance outstanding								$ 12,560		0
West Broad Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 88		0
Debt instrument variable rate								7.00%
Maturity date								Dec. 21, 2033
Balance outstanding								$ 11,712		0
The Shops at Greenwood Village Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 80		94
Debt instrument variable rate								5.85%
Maturity date								Oct. 10, 2028
Balance outstanding								$ 22,218		22,772
Lamont Street Minimum Multiple Amount [Member]
Debt Instrument [Line Items]
Balance outstanding										$ 300
Greenwood Village [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest rate of loan					5.85%					4.082%
Greenwood Village [Member] | SOFR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate					2.85%
Interest rate of loan					5.85%
Greenwood Village [Member] | Mortgage Loan [Member]
Debt Instrument [Line Items]
Interest rate of loan					5.85%
Greenwood Village [Member] | Mortgage Loan [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest rate of loan													4.082%
Greenwood Village [Member] | Mortgage Loan [Member] | SOFR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate					2.85%
Greenwood Village [Member] | Mortgage Loan [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Debt instrument variable rate													0.35%

[1] The outstanding balance includes less than $0.1 million and $0.3 million of exit fees at December 31, 2023 and 2022, respectively.

[2] On June 28, 2023, the Company entered into an agreement to amend the interest rate to 7.73% and extend the maturity date of this loan to June 24, 2024. 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%.

[3] The outstanding balance includes approximately $0.3 million of indebtedness as of December 31, 2022 related to the Lamont Street Minimum Multiple Amount (as defined below) owed to Lamont Street as described below under the heading “—Lamont Street Preferred Interest.”

[4] On May 5, 2023, the Company refinanced the Highlandtown Village Shopping Center Loan to extend the maturity date to May 10, 2028 and entered into an interest rate swap which fixes the interest rate of the new loan at 6.085% as described below under the heading “—Mortgage Indebtedness”. The prior loan carried an interest rate of 4.13%.