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v3.20.2

Note 1 - Organization (Details Textual) |  | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 29, 2020 | Jun. 30, 2020 USD ($) ft² | Dec. 31, 2019 USD ($) ft² | Dec. 31, 2016 | Sep. 17, 2019 USD ($) | Jun. 30, 2019
Area of Real Estate Property (Square Foot) | ft² |  | 374,926 |  |  |  |
Number of Real Estate Properties |  | 132 |  |  |  |
Number of Limited Partnerships in which Company is Sole General Partner |  |  |  | 1 |  |
Number of Limited Liability Companies |  |  |  | 4 |  |
Percentage of Distributed Taxable Income to Qualify as REIT |  | 90.00% | 90.00% |  |  |
Long-Term Debt, Maturity, Remainder of Fiscal Year |  | $ 7,032,975 |  |  |  |
Long-Term Debt, Maturity, Year One |  | $ 29,091,117 | $ 29,166,847 |  |  |
Model Home [Member] |  |  |  |  |  |
Number of Real Estate Properties |  | 17 | 33 |  |  | 18
Mortgage Notes [Member] |  |  |  |  |  |
Long-Term Debt, Maturity, Remainder of Fiscal Year |  | $ 7,000,000 |  |  |  |
Long-Term Debt, Maturity, Year One |  | 29,100,000 |  |  |  |
Mortgage Notes [Member] | Model Home [Member] |  |  |  |  |  |
Long-Term Debt, Maturity, Remainder of Fiscal Year |  | 6,200,000 |  |  |  |
Long-Term Debt, Maturity, Year One |  |  | $ 12,300,000 |  |  |
Mortgage Notes [Member] | Commercial Property [Member] |  |  |  |  |  |
Long-Term Debt, Maturity, Remainder of Fiscal Year |  | $ 900,000 |  |  |  |
Long-Term Debt, Maturity, Year One |  |  | $ 16,900,000 |  |  |
Polar Multi-Strategy Master Fund [Member] | Notes Payable to Banks [Member] |  |  |  |  |  |
Long-term Debt, Total |  |  |  |  | $ 14,000,000 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 8.00% |
Reverse Stock Split [Member] | Subsequent Event [Member] |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 2 |  |  |  |  |
Office/Industrial Properties [Member] |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  | 998,016 | 1,192,566 |  |  |
Retail Properties [Member] |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  | 131,722 | 131,722 |  |  |
Number of Real Estate Properties |  |  | 4 |  |  |
Model Home Properties [Member] |  |  |  |  |  |
Number of Real Estate Properties |  | 132 | 136 |  |  |
Number of Limited Partnerships in which Company is Sole General Partner |  | 5 |  |  |  |
Number of Limited Liability Companies |  | 1 |  |  |  |

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