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Note 2 - Significant Accounting Policies (Details Textual)			1 Months Ended	3 Months Ended						6 Months Ended
	Feb. 07, 2025 USD ($)	Apr. 22, 2024 USD ($) $ / shares shares	May 31, 2025 USD ($)	Jun. 30, 2025 USD ($) shares	Dec. 31, 2024 USD ($) shares	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2025 USD ($) shares	Jun. 30, 2024 USD ($)	Mar. 31, 2025	Jan. 24, 2025 shares
Amortization of above and below Market Leases				$ 1,244			$ 1,244			$ 2,265	$ 2,487
Deferred Costs				1,400,000	$ 1,700,000					1,400,000
Operating Lease, Initial Direct Cost Expense, over Term				82,657			119,278			217,433	244,099
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation				7,285,089	8,036,496					7,285,089
Restricted Cash				3,600,000	5,000,000					3,600,000
Deferred Offering Costs				0	0					0
Gain (Loss) on Sale of Properties							811,903
Liabilities, Fair Value Disclosure				0	0					0
Equity Securities, FV-NI				7,728	$ 206,177					7,728
Operating Lease, Lease Income				4,281,753			4,474,198			8,314,182	9,113,925
Prior Year Paid Additions to Building and Tenant Improvements										(207,847)	(295,567)
Construction in Progress Expenditures Incurred but Not yet Paid										176,307	91,513
Payments of Debt Issuance Costs										247,882	182,798
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation										(1,012,227)	(1,301,028)
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation										11,372,797	12,960,482
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation										(11,111,977)	(9,635,001)
Revision of Prior Period, Error Correction, Adjustment [Member]
Operating Lease, Lease Income							211,256				431,876
Revision of Prior Period, Error Correction, Adjustment [Member] | Accounts Payable and Accrued Liabilities [Member]
Accounts Payable							$ 204,054				204,054
Revision of Prior Period, Adjustment [Member]
Payments of Debt Issuance Costs											182,798
Payments for Prepayment Penalty											171,734
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation											(562,458)
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation											(207,926)
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation											$ 354,532
Conduit Pharmaceuticals Inc [Member]
Equity Securities, FV-NI				$ 7,728						$ 7,728
Conduit Pharmaceuticals Inc [Member] | Private Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares		540,000		540,000						540,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares		$ 3.12
Warrants and Rights Outstanding, Term (Year)		2 years
Warrant or Right, Exercisable Period (Year)		1 year
Warrants and Rights Outstanding		$ 891,000		$ 7,728		$ 0				$ 7,728
Conduit Pharmaceuticals Inc [Member]
Lock-up Agreement, Shares (in shares) | shares		2,700,000
Investment Owned, Balance, Shares (in shares) | shares		4,015,250			2,944,514								29,431
Equity Securities, FV-NI					$ 200,000
Conduit Pharmaceuticals Inc [Member] | CDT Common Stock [Member]
Proceeds from Sale, Maturity and Collection of Investments			$ 13,990							$ 13,990
Fair Value, Inputs, Level 1 [Member]
Marketable Securities					0
Discontinued Operations, Disposed of by Sale [Member]
Number of Real Estate Properties				13			42			13	42
Real Estate Property, Consideration Transferred, Total										$ 5,900,000	$ 20,100,000
Gain (Loss) on Sale of Properties										600,000	2,800,000
Model Home [Member]
Impairment of Real Estate										$ 0.1	$ 200,000
Number of Real Estate Properties				22			12			22	12
Real Estate Property, Consideration Transferred, Total										$ 9,400,000	$ 5,700,000
Commercial Property [Member]
Impairment of Real Estate										$ 4,200,000	0
Number of Real Estate Properties	2											10
Real Estate Property, Consideration Transferred, Total	$ 17,000,000
Gain (Loss) on Sale of Properties	$ 4,200,000
Building and Tenant Improvements [Member] | Revision of Prior Period, Error Correction, Adjustment [Member]
Prior Year Paid Additions to Building and Tenant Improvements											295,567
Construction in Progress Expenditures Incurred but Not yet Paid											91,513
Maximum [Member] | Furniture and Fixtures [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year)				5 years						5 years
Minimum [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year)				1 year						1 year
Minimum [Member] | Leasehold Improvements [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year)				1 year						1 year
Lease Intangibles [Member] | Maximum [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year)												10 years
Finite-lived Intangibles, Other Than Lease Intangibles [Member]
Amortization of Intangible Assets				$ 4,382			$ 4,382			$ 8,763	$ 8,763
Finite-lived Intangibles, Other Than Lease Intangibles [Member] | Revision of Prior Period, Error Correction, Adjustment [Member]
Amortization of Intangible Assets					$ 159,845	$ 165,983	$ 211,256	$ 220,620	$ 194,884

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