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Note 2 - Significant Accounting Policies (Details Textual) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 22, 2023
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Amortization of above and below Market Leases   $ 1,200 $ 3,700 $ 14,000 $ 41,000  
Deferred Costs   1,500,000   1,500,000   $ 1,500,000
Operating Lease, Initial Direct Cost Expense, over Term   123,000 94,000 352,000 283,000  
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents   7,778,764   7,778,764   16,516,725
Restricted Cash   3,700,000   3,700,000   4,400,000
Cash, Uninsured Amount   $ 500,000   $ 500,000   8,800,000
Number of Model Homes, Held for Sale   7   7    
Marketable Securities   $ 614,063   $ 614,063   797,749
Marketable Securities, Cost Basis   700,000   700,000   900,000
Equity Securities, FV-NI   23,996,141   23,996,141   0
Equity Securities, FV-NI, Cost   7,500,000   $ 7,500,000    
Excise Tax Liability on Spac Redemptions, Percentage       1.00%    
Excise Tax Liability on Spac Redemptions, Amount   1,140,683   $ 1,140,683    
Conduit Pharmaceuticals Inc [Member]            
Stock Issued During Period, Shares, Acquisitions (in shares) 65,000,000          
Common Class A [Member]            
Stock Redeemed or Called During Period, Shares (in shares)       11,037,272    
Stock Redeemed or Called During Period, Value       $ 114,068,280    
Fair Value, Inputs, Level 1 [Member]            
Marketable Securities   600,000   600,000   800,000
Cash Equivalents, at Carrying Value   0   0   $ 136,900,000
Lease Intangibles [Member]            
Amortization of Intangible Assets   $ 4,300 $ 50,000 $ 13,100 $ 152,300  
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    
Leasehold Improvements [Member] | Maximum [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year)   10 years   10 years    
Furniture and Fixtures [Member] | Maximum [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation (Year)   5 years   5 years    
Furniture and Fixtures [Member] | 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    
Murphy Canyon Acquisition Sponsor, LLC (SPAC) [Member]            
Subsidiary, Ownership Percentage, Parent   65.00%   65.00%