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Note 5 - Lease Intangibles (Details Textual) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets, Gross, Total	$ 4,110,139	$ 4,110,139
Finite-Lived Intangible Assets, Accumulated Amortization	3,955,129	3,852,968
Below Market Lease, Net, Ending Balance	45,685	73,130
Real Estate Assets Held for Sale [Member]
Finite-Lived Intangible Assets, Gross, Total	0.0	1,100,000
Finite-Lived Intangible Assets, Accumulated Amortization	$ 0.0	$ 1,100,000

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- Definition

Amount after amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(16))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

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

+ References

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

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