Note 7 - Mortgage and Other Indebtedness - Schedule of Debt Balance (Parenthetical) (Details) - USD ($) $ in Thousands					1 Months Ended	6 Months Ended
		May 05, 2023	May 01, 2023	Jan. 01, 2023	Dec. 31, 2019	Jun. 30, 2023		Dec. 31, 2022	Nov. 23, 2022	Aug. 01, 2022	Oct. 06, 2021
Debt Instrument [Line Items]
Balance outstanding						$ 254,333		$ 269,474
Unamortized deferred financing costs						(1,752)	[1]	(1,858)
Mortgage and other indebtedness related to real estate held for sale, net						(238,029)		(267,616)
Exit Fees Outstanding						300		300
Assets held for sale [Member]
Debt Instrument [Line Items]
Mortgage and other indebtedness related to real estate held for sale, net						(14,552)
Maximum [Member] | Assets held for sale [Member]
Debt Instrument [Line Items]
Mortgage and other indebtedness related to real estate held for sale, net						$ (100)
LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate						5.22%
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						$ 38		79
Debt instrument variable rate	[2]					8.62%
Maturity date						Jan. 01, 2024
Balance outstanding	[3]					$ 67,147	[1]	$ 67,086
Interest rate of loan						8.62%
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] | LIBOR [Member] | Interest Rate Cap [Member]
Debt Instrument [Line Items]
Debt instrument variable rate						3.50%
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						$ 0		$ 12
Debt instrument variable rate	[2],[4]					3.83%
Maturity date	[4]					Jun. 24, 2024
Balance outstanding	[4]					$ 11,345		11,478
Lamar Station Plaza West Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 82		95
Debt instrument variable rate	[2]					5.67%
Maturity date						Dec. 10, 2027
Balance outstanding						$ 18,329		18,317
Lamont Street Preferred Interest [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 0		29
Debt instrument variable rate	[2],[5]					13.50%
Maturity date	[5]					Sep. 30, 2023
Balance outstanding	[5]							4,241
Highlandtown Village Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 42		14
Debt instrument variable rate						4.13%
Debt instrument variable rate	[2],[6]					6.085%
Maturity date		May 10, 2028				May 10, 2028	[6]
Balance outstanding	[6]					$ 8,708		5,241
Highlandtown Village Shopping Center Loan [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Debt instrument variable rate		6.085%
Cromwell Field Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 68		77
Debt instrument variable rate	[2]					6.71%
Maturity date						Dec. 22, 2027
Balance outstanding						$ 10,122		10,113
Midtown Row Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 22		25
Debt instrument variable rate	[2]					6.48%
Maturity date						Dec. 01, 2027
Balance outstanding						$ 75,978		75,975
Greenwood Village [Member] | Mortgage Loan [Member]
Debt Instrument [Line Items]
Interest rate of loan			5.85%
Greenwood Village [Member] | Prime Rate [Member] | Mortgage Loan [Member]
Debt Instrument [Line Items]
Debt instrument variable rate											0.35%
Greenwood Village [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest rate of loan											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] | SOFR [Member] | Mortgage Loan [Member]
Debt Instrument [Line Items]
Debt instrument variable rate			2.85%
Spotswood Valley Square Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 0		31
Debt instrument variable rate	[2]					4.82%
Maturity date						Jul. 06, 2023
Balance outstanding								11,849
Lamont Street Minimum Multiple Amount [Member]
Debt Instrument [Line Items]
Balance outstanding								300
The Shops at Greenwood Village [Member]
Debt Instrument [Line Items]
Debt instrument net of discount						$ 85		94
Debt instrument variable rate	[2]					5.85%
Maturity date						Oct. 10, 2028
Balance outstanding						$ 22,499		$ 22,772

[1] The outstanding balances of $67.1 million and $(1.8) million include $14.6 million and less than $(0.1) million, respectively, that were reclassified to mortgages related to assets held for sale.

[2] At June 30, 2023, the floating rate loans tied to the London Inter-Bank Offered Rate (“LIBOR”) were based on the one-month LIBOR rate of 5.22%. Beginning July 1, 2023, one-month LIBOR is no longer published and all remaining debt referencing LIBOR was replaced with SOFR (as defined below).

[3] The outstanding balance includes $0.3 million of exit fees.

[4] On June 28, 2023, the Company entered into an agreement to extend the maturity date of this loan to June 24, 2024.

[5] 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.”

[6] 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%.