Note 5 - Lease Intangibles (Details Textual) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets, Gross, Total	$ 4,110,139	$ 4,110,139
Below Market Lease, Net, Ending Balance	18,240	73,130
Real Estate Assets Held for Sale [Member]
Finite-Lived Intangible Assets, Gross, Total	$ 0	$ 0

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant