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Note 5 - Asset Acquisition of Real Estate Properties (Details Textual)
12 Months Ended
Jun. 27, 2019
USD ($)
Jun. 29, 2018
USD ($)
shares
Jan. 10, 2018
USD ($)
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Payments to Acquire Businesses, Gross       $ 552,644
Mt. Melrose LLC [Member] | Woodmont [Member]          
Percentage of Membership Interest in Subsidiary Sold 65.00%        
Proceeds from Divestiture of Interest in Consolidated Subsidiaries $ 100,000        
Mt. Melrose LLC [Member]          
Payments to Acquire Businesses, Gross     $ 500,000    
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares   148,158 120,602    
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable   $ 2,407,564 $ 1,658,270    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt   2,767,158 1,798,119    
Mt. Melrose LLC [Member] | Land, Buildings and Improvements [Member]          
Business Acquisition, Transaction Costs   $ 7,393 $ 45,250    
Mt. Melrose LLC [Member] | Residential Properties [Member]          
Number of Real Estate Properties   69 44    
Business Combination, Consideration Transferred, Total   $ 5,174,722 $ 3,956,389