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v3.23.1

Note 1 - Organization and Basis of Presentation (Details Textual) |  |  |  | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 12, 2021 $ / shares shares | Jun. 17, 2021 USD ($) shares | Jun. 17, 2021 USD ($) shares | Jun. 15, 2021 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) a $ / shares shares | Dec. 31, 2021 USD ($) | Sep. 30, 2022 USD ($) | Jan. 24, 2022 $ / shares shares | Jan. 21, 2022 $ / shares shares | Aug. 31, 2021 $ / shares shares | Apr. 27, 2021 USD ($) | Jan. 23, 2012 $ / shares
Number of Limited Liability Companies |  |  |  |  | 2 |  |  |  |  |  |  |
Number of Limited Partnerships in which Company is Sole General Partner |  |  |  |  | 5 |  |  |  |  |  |  |
Equity Offering, Maximum Gross Proceeds | $ |  |  |  |  |  |  |  |  |  |  | $ 200,000,000 |
Shares Issued, Price Per Share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 19.00
Proceeds from Issuance of Preferred Stock and Preference Stock | $ |  |  |  |  | $ 0 | $ 20,489,803 |  |  |  |  |  |
Long-Term Debt, Maturity, Year One | $ |  |  |  |  | $ 8,270,149 |  |  |  |  |  |  |
Number of Reportable Segments |  |  |  |  | 3 |  |  |  |  |  |  |
Restricted Cash, Total | $ |  |  |  |  | $ 4,400,000 | $ 4,700,000 |  |  |  |  |  |
Customer Concentration Risk [Member] | Rental Income [Member] |  |  |  |  |  |  |  |  |  |  |  |
Number of Tenants |  |  |  |  | 1 |  |  |  |  |  |  |
Customer Concentration Risk [Member] | Rental Income [Member] | One Tenant [Member] |  |  |  |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  | 8.57% | 8.00% |  |  |  |  |  |
Mortgage Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Long-Term Debt, Maturity, Year One | $ |  |  |  |  | $ 8,300,000 |  |  |  |  |  |  |
Class A Common Stock and Accompanying Common Stock Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares | $ 5.00 |  |  |  |  |  |  |  |  |  |  |
Class A Common Stock and Accompanying Pre-funded Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares | $ 4.99 |  |  |  |  |  |  |  |  |  |  |
Common Stock Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares | 2,000,000 |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | $ 5.50 |  |  |  |  |  |  |  |  | $ 5.50 |  |
Warrants and Rights Outstanding, Term (Year) | 5 years |  |  |  |  |  |  |  |  | 5 years |  |
Pre-funded Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares | 1,000,000 |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | $ 0.01 |  |  |  |  |  |  |  |  | $ 0.01 |  |
Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares |  |  |  |  |  |  |  |  |  | 80,000 |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 6.25 |  |
Warrants and Rights Outstanding, Term (Year) |  |  |  |  |  |  |  |  |  | 5 years |  |
Class of Warrant or Right, Securities Called By Warrants or Rights, Percentage of Class of Stock |  |  |  |  |  |  |  |  |  | 4.00% |  |
Common Stock Warrants and Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercised During Period (in shares) | shares |  |  |  |  | 0 |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares |  |  |  |  |  |  |  |  | 0.10 |  |  |
Series A Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  | $ 7.00 |  |  | $ 0.17 | $ 7.00 |  |  |
Warrants and Rights Outstanding, Term (Year) |  |  |  |  |  |  |  |  | 5 years |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares |  |  |  |  |  |  |  |  | 1 |  |  |
Class of Warrant or Right, Outstanding (in shares) | shares |  |  |  |  |  |  |  | 14,450,069 |  |  |  |
Common Class A [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares | 1,000,000 |  |  |  |  |  |  |  |  |  |  |
Series D Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares |  | 920,000 | 920,000 | 800,000 |  |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares |  |  |  | $ 25.00 |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  | 9.375% | 9.375% |  |  |  |  |  |  |
Proceeds from Issuance of Preferred Stock and Preference Stock | $ |  | $ 20,500,000 | $ 20,500,000 | $ 18,100,000 |  |  |  |  |  |  |  |
Series D Preferred Stock [Member] | Over-Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares |  | 120,000 |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Preferred Stock and Preference Stock | $ |  | $ 2,700,000 |  |  |  |  |  |  |  |  |  |
Option to Purchase Additional Shares, Period (Day) |  |  |  | 45 days |  |  |  |  |  |  |  |
Model Home Properties [Member] |  |  |  |  |  |  |  |  |  |  |  |
Number of Limited Partnerships in which Company is Sole General Partner |  |  |  |  | 5 |  |  |  |  |  |  |
Commercial Property [Member] |  |  |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties, Fee Simple |  |  |  |  | 12 |  |  |  |  |  |  |
Commercial Property [Member] | Partially Owned Properties [Member] |  |  |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties, Fee Simple |  |  |  |  | 2 |  |  |  |  |  |  |
Mortgage Notes [Member] | Mortgage Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Long-Term Debt, Maturity, Year One | $ |  |  |  |  | $ 6,800,000 |  |  |  |  |  |  |
Mortgage Note, Due June 11, 2022 [Member] | The 300 N.P [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid | $ |  |  |  |  |  |  | $ 2,200,000 |  |  |  |  |
Shea Center II [Member] |  |  |  |  |  |  |  |  |  |  |  |
Restricted Cash, Total | $ |  |  |  |  | $ 1,100,000 |  |  |  |  |  |  |
Area of Real Estate Property (Acre) | a |  |  |  |  | 45,535 |  |  |  |  |  |  |

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