Note 6 - Mortgage and Other Indebtedness - Schedule of Debt Balance (Parenthetical) (Details) - USD ($) $ in Thousands					1 Months Ended		3 Months Ended	12 Months Ended
		Nov. 23, 2022	Jun. 16, 2020	Dec. 27, 2019	Jun. 30, 2020	Dec. 31, 2019	Oct. 17, 2022	Dec. 31, 2022		Dec. 31, 2021	Dec. 22, 2022	Aug. 01, 2022	Oct. 06, 2021	Mar. 31, 2021
Debt Instrument [Line Items]
Debt instrument net of discount								$ 400		$ 1,000
Exit fees outstanding								300
Balance outstanding								269,474		180,097
Balance outstanding								$ 267,152
MVB Revolver [Member]
Debt Instrument [Line Items]
Interest Rate								7.75%
Maturity date	[1]							Jun. 27, 2023
Balance outstanding								$ 0		1,404
MVB Revolver [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest Rate								6.75%
Sub-OP [Member]
Debt Instrument [Line Items]
Preferred investor, additional capital contribution			$ 2,900		$ 2,900
Preferred Units Contributed Capital Outstanding										900
LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate								4.39%
Prime Rate [Member] | MVB Revolver [Member]
Debt Instrument [Line Items]
Debt instrument variable rate								1.50%
Interest Rate Swap [Member] | Hollinswood Loan [Member]
Debt Instrument [Line Items]
Interest Rate								4.06%
Mortgage Loan [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Interest Rate													0.35%
Mortgage Loan [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest Rate													4.082%
Basis Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 79		373
Interest Rate								6.125%
Maturity date								Jan. 01, 2024
Balance outstanding								$ 67,086	[2]	$ 66,811
Balance outstanding								$ 66,900
Basis Term Loan [Member] | Sub-OP [Member]
Debt Instrument [Line Items]
Preferred investor, additional capital contribution			2,400
Basis Term Loan [Member] | SOFR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate								3.97%
Basis Term Loan [Member] | Interest Rate Cap [Member]
Debt Instrument [Line Items]
Debt instrument variable rate				6.125%				6.125%		6.125%
Basis Term Loan [Member] | Interest Rate Cap [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest rate of loan				3.50%
Basis Term Loan [Member] | Interest Rate Cap [Member] | SOFR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate		4.65%		3.97%
Debt instrument variable rate		4.65%										3.50%
Interest rate of loan		4.65%
Basis Preferred Interest [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 0		$ 75
Interest Rate	[3],[4]							14.00%
Maturity date	[4],[5]							Jan. 01, 2023
Balance outstanding	[4]							$ 0		8,560
Basis Preferred Interest [Member] | Sub-OP [Member]
Debt Instrument [Line Items]
Balance outstanding										800
Vista Shops at Golden Mile Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 12		39
Interest Rate								3.83%	[6]					3.83%
Maturity date	[6]							Jun. 24, 2023
Balance outstanding	[6]							$ 11,478		11,661
Vista Shops at Golden Mile Loan [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate								2.50%
Vista Shops at Golden Mile Loan [Member] | Mortgage Loan [Member]
Debt Instrument [Line Items]
Maturity date								Jan. 25, 2021
Lamar Station Plaza East Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 0		8
Interest Rate								6.14%
Maturity date							Oct. 17, 2022	Oct. 17, 2022	[7]
Balance outstanding								$ 0		3,507
Lamar Station Plaza East Loan [Member] | SOFR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate						3.97%
Lamar Station Plaza West Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 95		0
Interest Rate								5.67%
Maturity date								Dec. 10, 2027
Balance outstanding								$ 18,317		0
Lamont Street Preferred Interest [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 29		67
Interest Rate	[8]							13.50%
Maturity date	[8]							Sep. 30, 2023
Balance outstanding	[8]							$ 4,241		4,498
Highlandtown Village Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 14		46
Interest Rate								4.13%
Maturity date								May 06, 2023
Balance outstanding								$ 5,241		5,364
Cromwell Field Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 77		144
Interest Rate								6.71%			6.71%
Maturity date	[9]							Dec. 22, 2027
Balance outstanding								$ 10,113		12,249
Cromwell Field Shopping Center Loan [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument variable rate								5.40%
Cromwell Field Shopping Center Loan [Member] | LIBOR [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument variable rate								0.50%
Cromwell Field Shopping Center Mezzanine Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 0		18
Interest Rate								10.00%
Maturity date	[9],[10]							Dec. 31, 2022
Balance outstanding								$ 0		1,512
Midtown Row Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 25		0
Interest Rate								6.48%
Maturity date								Dec. 01, 2027
Balance outstanding								$ 75,975		0
Midtown Row Mezzanine Loan [Member]
Debt Instrument [Line Items]
Interest Rate								12.00%
Maturity date								Dec. 01, 2027
Balance outstanding								$ 17,895	[11]	0
Spotswood Valley Square Shopping Center Loan [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 31		94
Interest Rate								4.82%
Maturity date								Jul. 06, 2023
Balance outstanding								$ 11,849		12,100
The Shops at Greenwood Village [Member]
Debt Instrument [Line Items]
Debt instrument net of discount								$ 94		114
Interest Rate								4.08%
Maturity date								Oct. 10, 2028
Balance outstanding								$ 22,772		23,296
Basis Preferred Interest Minimum Multiple Amount [Member]
Debt Instrument [Line Items]
Balance outstanding										800
Other Capital Contribution [Member] | Sub-OP [Member]
Debt Instrument [Line Items]
Preferred investor, additional capital contribution			$ 500
Preferred units, cumulative annual return			13.00%		13.00%
Lamont Street Minimum Multiple Amount [Member]
Debt Instrument [Line Items]
Balance outstanding								$ 300		$ 600
Greenwood Village [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest rate of loan								4.082%

[1] In March 2022, the Company entered into a six-month extension on the MVB Term Loan and the MVB Revolver (each as defined below) as described under the heading "—MVB Loans." The Company repaid the MVB Term Loan and MVB Revolver on November 23, 2022 with proceeds from the Preferred Equity Investment.

[2] The outstanding balance includes $0.3 million of exit fees as of December 31, 2022.

[3] In June 2020, the Preferred Investor made additional capital contributions of approximately $2.9 million as described below under the heading “—Basis Preferred Interest” of which approximately $0.9 million was outstanding at December 31, 2021. The Preferred Investor was entitled to a cumulative annual return of 13.0% on the additional contributions.

[4] The outstanding balance included approximately $0.8 million of indebtedness as of December 31, 2021 related to the Minimum Multiple Amount (as defined below) owed to the Preferred Investor as described below under the heading “—Basis Preferred Interest.” The Basis Preferred Interest was repaid on November 23, 2022 with proceeds from the Preferred Equity Investment.

[5] If the Basis Term Loan was paid in full earlier than its maturity date, the Basis Preferred Interest in the Sub-OP (as defined below) would have matured at that time.

[6] The Company completed the refinance of this loan in March 2021 as described below under the heading “—Mortgage Indebtedness.” The prior loan matured on January 25, 2021 and carried an interest rate of LIBOR plus 2.5% per annum.

[7] In August 2022, the Company entered into a modification to the Lamar Station Plaza East loan to extend the maturity date to October 17, 2022, effective July 17, 2022, as described below under the heading "—Mortgage Indebtedness". The Lamar Station Plaza East loan was repaid on November 23, 2022 with proceeds from the Preferred Equity Investment.

[8] The outstanding balances include approximately $0.3 million and $0.6 million of indebtedness as of December 31, 2022 and 2021, respectively, 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."

[9] On November 9, 2022, the Company entered into a modification to the Cromwell Field Shopping Center mortgage and mezzanine loans to extend the maturity dates to December 31, 2022. In December 2022, the Company refinanced the Cromwell Field Shopping Center mortgage.

[10] On December 2022, the Company repaid the Cromwell Field Shopping Center Mezzanine loan.

[11] The outstanding balance reflects the fair value of the debt.