Loans Payable, net - Schedule of Debt Obligations (Details)	Mar. 31, 2024 USD ($) property	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Total debt gross	$ 146,447,000
Unamortized issuance costs	(3,864,000)
Total loans payable, net (including real estate held for sale)	142,583,000
Less: Loans payable, net - real estate held for sale (Note 3)	993,000	$ 0
Loans payable, net	$ 141,590,000	$ 140,494,000
Contractual interest rates weighted average	5.60%
Variable-rate secured revolving credit facility | Revolving Credit Agreement
Debt Instrument [Line Items]
Total debt gross	$ 1,387,000
Contractual interest rates weighted average	8.20%
Fixed-rate secured term loans
Debt Instrument [Line Items]
Total debt gross	$ 145,060,000
Fixed-rate secured term loans | Timpany Plaza
Debt Instrument [Line Items]
Total debt gross	$ 10,060,000
Contractual interest rates weighted average	7.30%
Fixed-rate secured term loans | Term loan, 10 properties
Debt Instrument [Line Items]
Total debt gross	$ 110,000,000
Contractual interest rates weighted average	5.30%
Number of collateral real estate properties | property	10
Fixed-rate secured term loans | Patuxent Crossing/Coliseum Marketplace
Debt Instrument [Line Items]
Total debt gross	$ 25,000,000
Contractual interest rates weighted average	6.40%