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Note 8 - Notes Payable (Details Textual) - USD ($)
1 Months Ended
Aug. 17, 2020
Apr. 22, 2020
Apr. 30, 2022
Mar. 31, 2022
Dec. 31, 2023
Dec. 20, 2021
Aug. 17, 2021
Refinanced NetREIT Promissory Notes [Member]              
Proceeds from Short-Term Debt, Total     $ 3,700,000        
Refinanced PPT Baltimore Promissory Note [Member]              
Proceeds from Short-Term Debt, Total       $ 5,670,000      
Majority Owned Subsidiary NetREIT Highland [Member] | Promissory Note for the Acquisition of the Mandolin Property in Houston, Texas [Member]              
Debt Instrument, Face Amount             $ 1,560,000
Debt Instrument, Interest Rate, Stated Percentage             4.00%
Repayments of Short-Term Debt, Total     $ 1,560,000        
Majority Owned Subsidiary, PPT Baltimore [Member] | Promissory Note Issued for Acquisition of Baltimore Property in Baltimore, MD [Member]              
Debt Instrument, Face Amount           $ 5,650,000  
Debt Instrument, Interest Rate, Stated Percentage           4.50%  
Repayments of Short-Term Debt, Total       $ 5,650,000      
Promissory Notes for the Refinancing of Four Model Home Properties in Texas and Wisconsin [Member] | Majority Owned Subsidiary Dubose Model Home Investors 202 LP and 204 LP [Member]              
Debt Instrument, Face Amount         $ 500,000    
Promissory Notes for the Refinancing of Four Model Home Properties in Texas and Wisconsin [Member] | Majority Owned Subsidiary Dubose Model Home Investors 202 LP and 204 LP [Member] | Minimum [Member]              
Debt Instrument, Interest Rate, Stated Percentage         3.00%    
Promissory Notes for the Refinancing of Four Model Home Properties in Texas and Wisconsin [Member] | Majority Owned Subsidiary Dubose Model Home Investors 202 LP and 204 LP [Member] | Maximum [Member]              
Debt Instrument, Interest Rate, Stated Percentage         5.55%    
Economic Injury Disaster Loan [Member]              
Proceeds from Issuance of Unsecured Debt $ 150,000 $ 10,000