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Note 2 - Significant Accounting Policies (Details Textual) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($)
Amortization of above and below Market Leases | $ 13,000 | $ 1,000 |
Amortization of Intangible Assets | 52,000 | 116,000 |
Deferred Costs, Total | 1,100,000 |  | $ 1,300,000
Operating Lease, Initial Direct Cost Expense, over Term | 95,000 | $ 85,000 |
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Ending Balance | 22,494,595 |  | 14,702,089
Restricted Cash, Total | 4,600,000 |  | 4,700,000
Cash, Uninsured Amount | $ 15,200,000 |  | 7,300,000
Number of Real Estate Properties Held for Sale | 1 |  |
Unamortized Deferred Stock Costs | $ 75,000,000,000 |  | 135,000,000,000
Marketable Securities, Total | 975,176 |  | 1,514,483
Marketable Securities, Cost Basis | 1,000,000.0 |  | 1,600,000
Fair Value, Inputs, Level 1 [Member] |  |  |
Marketable Securities, Total | $ 1,000,000.0 |  | $ 1,500,000
Model Home [Member] |  |  |
Number of Real Estate Properties Held for Sale | 4 |  |
Maximum [Member] |  |  |
Amortization of Value In Place Leases (Year) | 10 years |  |
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 |  |
SPAC, Murphy Canyon Acquisition Corp. [Member] |  |  |
Equity Method Investment, Ownership Percentage | 23.50% |  |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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