Note 4 - Intangibles - Summary of Carrying Amount of Intangible Assets and Liabilities (Details) - Real Estate [Member] - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Above-market leases	$ 4,153	$ 4,153
In-place leases	29,108	29,221
Total real estate intangible assets, net	9,770	10,811
Liabilities
Below-market leases	3,146	3,146
Below-market leases accumulated amortization	(2,594)	(2,513)
Total real estate intangible liabilities, net	552	633
Above-Market Leases [Member]
Assets:
Accumulated amortization	(2,631)	(2,469)
Total real estate intangible assets, net	1,522
In-Place Leases [Member]
Assets:
Accumulated amortization	(20,860)	$ (20,094)
Total real estate intangible assets, net	$ 8,248