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Note F - Notes Payable (Details Textual) - USD ($)
Sep. 06, 2023
Feb. 28, 2024
Dec. 31, 2023
Dec. 31, 2022
May 06, 2017
May 01, 2017
Restricted Cash     $ 5,577,000 $ 5,216,000    
Vestin Realty Mortgage II, Inc [Member]            
Repayments of Debt $ 9,900,000          
Promissory Note to KeyBank [Member]            
Debt Instrument, Face Amount           $ 12,700,000
Promissory Note to Cantor Commercial Real Estate Lending, LP [Member]            
Debt Instrument, Face Amount         $ 16,250,000  
Loan to MVP St. Louis and MVP Memphis Poplar [Member] | Subsequent Event [Member]            
Debt Instrument, Face Amount   $ 5.9        
Debt Instrument, Interest Rate, Stated Percentage   7.94%        
Debt Instruments Failing to Meet Covenants [Member]            
Long-Term Debt, Gross     38,200,000      
Restricted Cash     $ 800,000