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Note 2 - Significant Accounting Policies (Details Textual) |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 22, 2023 shares | Jan. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares
Amortization of above and below Market Leases |  |  | $ 5,000 | $ 55,000
Impairment of Real Estate |  |  | 2,398,097 | (0)
Goodwill |  |  | 1,574,000 | 2,423,000
Goodwill and Intangible Asset Impairment |  |  |  | 0
Depreciation, Depletion and Amortization, Nonproduction |  |  | 5,425,739 | 5,465,015
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents |  |  | 6,510,428 | 16,516,725
Cash, Uninsured Amount |  |  | 700,000 | 8,800,000
Restricted Cash |  |  | 3,700,000 | 4,400,000
Accounts Receivable, Allowance for Credit Loss |  |  | 92,000 | 138,000
Deferred Costs |  |  | 1,700,000 | 1,500,000
Operating Lease, Initial Direct Cost Expense, over Term |  |  | 500,000 | 400,000
Amortization of Debt Issuance Costs |  |  | 345,880 | 240,090
Unamortized Deferred Stock Costs |  |  | 5,000 |
Deferred Offering Costs |  |  | $ 5,000 | 0
Percentage of Distributed Taxable Income to Qualify as REIT |  |  | 90.00% |
Marketable Securities |  |  |  | 797,749
Marketable Securities, Cost Basis |  |  | $ 40,315 | 900,000
Equity Securities, FV-NI |  |  | 18,318,521 | 0
Equity Securities, FV-NI, Cost |  |  | 7,500,000 |
Liabilities, Fair Value Disclosure |  |  | $ 0 | $ 0
Earnings Per Share, Basic (in dollars per share) | $ / shares |  |  | $ 0.68 | $ (0.57)
Excise Tax Liability on Spac Redemptions, Percentage |  | 1.00% |  |
Excise Tax Liability on Spac Redemptions, Amount |  | $ 1,140,683 |  |
Conduit Pharmaceuticals Inc [Member] |  |  |  |
Stock Issued During Period, Shares, Acquisitions (in shares) | shares | 65,000,000 |  |  |
Common Class A [Member] |  |  |  |
Stock Redeemed or Called During Period, Shares (in shares) | shares |  |  | 11,037,272 |
Stock Redeemed or Called During Period, Value |  |  | $ 114,068,280 |
Fair Value, Inputs, Level 1 [Member] |  |  |  |
Marketable Securities |  |  | 45,149 | $ 800,000
Cash Equivalents, at Carrying Value |  |  | 0 | 136,900,000
Domestic Tax Authority [Member] |  |  |  |
Operating Loss Carryforwards |  |  | 18,000,000 |
Polar Multi-Strategy Master Fund [Member] | Notes Payable to Banks [Member] |  |  |  |
Debt Issuance Costs, Net |  |  | 800,000 | 900,000
Amortization of Debt Issuance Costs |  |  | $ 300,000 | $ 200,000
Building [Member] |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year) |  |  | 39 years |
NTR Property Management [Member] |  |  |  |
Goodwill, Gross |  |  | $ 1,300,000 |
Goodwill |  |  | 451,000 |
Goodwill, Fair Value Disclosure |  |  | $ 451,000 |
Discontinued Operations, Disposed of by Sale [Member] |  |  |  |
Number of Real Estate Properties |  |  | 22 | 31
Proceeds from Sale of Real Estate |  |  | $ 11,700,000 | $ 17,500,000
Gain (Loss) on Sale of Properties |  |  | $ 3,200,000 | 5,400,000
Commercial Property [Member] |  |  |  |
Number of Model Homes, Held for Sale |  |  | 0 |
Number of Real Estate Properties |  |  | 12 |
Model Home Properties [Member] |  |  |  |
Number of Model Homes, Held for Sale |  |  | 15 |
Impairment of Real Estate |  |  | $ 400,000 |
Model Home Properties [Member] | Discontinued Operations, Disposed of by Sale [Member] |  |  |  |
Number of Real Estate Properties |  |  | 8 |
One Park Centre [Member] |  |  |  |
Impairment of Real Estate |  |  | $ 2,000,000 |
Maximum [Member] |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year) |  |  | 5 years |
Maximum [Member] | Building [Member] |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year) |  |  | 39 years |
Maximum [Member] | Leasehold Improvements [Member] |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year) |  |  | 10 years |
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 |
Minimum [Member] |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (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 |
Minimum [Member] | Furniture and Fixtures [Member] |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year) |  |  | 4 years |
Lease Intangibles [Member] |  |  |  |
Amortization of Intangible Assets |  |  | $ 18,000 | 200,000
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 |  |  | $ 10,000 | $ 100,000
Intangible Associated With NTR Property Management [Member] |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill) |  |  | $ 800,000 |
Murphy Canyon Acquisition Sponsor, LLC (SPAC) [Member] |  |  |  |
Subsidiary, Ownership Percentage, Parent |  |  | 65.00% |

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- Definition Amount of non-cash amortization of intangible asset (liability) for above and below market leases. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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- Definition Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-3 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D + Details
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