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v3.21.1

Note 6 - Loans Payable (Details Textual) |  |  |  |  |  |  | 1 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 20, 2021 USD ($) | Jan. 28, 2021 USD ($) | Jul. 16, 2020 USD ($) a | Mar. 29, 2019 USD ($) | Jan. 24, 2019 USD ($) | Mar. 21, 2018 USD ($) | Jan. 31, 2021 USD ($) | Jul. 16, 2020 USD ($) a | Dec. 31, 2020 USD ($) ft² a | Dec. 31, 2019 USD ($)
Cortlandt Manor Medical Center [Member] |  |  |  |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  |  |  |  |  |  |  |  | 34,000 |
Real Estate Securing Mortgage Loan [Member] | Flowerfield Industrial Park [Member] |  |  |  |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | a |  |  | 31.8 |  |  |  |  | 31.8 | 31.8 |
Real Estate Securing Mortgage Loan [Member] | Cortlandt Manor Medical Center [Member] |  |  |  |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | a |  |  | 13.8 |  |  |  |  | 13.8 |  |
Non-revolving Credit Line [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | $ 3,000,000 | $ 3,000,000 |  |  |  |
Debt Instrument, Interest Only Phase, Term (Month) |  |  |  |  |  | 240 days |  |  |  |
Debt Instrument, Interest and Principal Phase, Term (Month) |  |  |  |  | 7 years |  |  |  |  |
Proceeds from Lines of Credit, Total |  |  |  | $ 1,100,000 | $ 1,100,000 |  |  |  |  |
Non-revolving Credit Line [Member] | Interest Only Period of Payments [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 4.75% |  |  |  |  |
Non-revolving Credit Line [Member] | Prime Rate [Member] | Interest Only Period of Payments [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.50% |  |  |  |  |
Non-revolving Credit Line [Member] | Federal Home Loan Bank Rate [Member] | After Interest Only Payment Period [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 2.00% |  |  |  |  |
Debt Instrument, Amortization Period (Year) |  |  |  |  | 20 years |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  | 3.85% |  |  |  |  |
Non-revolving Credit Line [Member] | Federal Home Loan Bank Rate [Member] | After Interest Only Payment Period [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 3.85% |  |  |  |  |
Non-revolving Credit Line 2 [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | $ 3,000,000 |  |  |  |  |
Debt Instrument, Interest Only Phase, Term (Month) |  |  |  |  | 2 years |  |  |  |  |
Debt Instrument, Interest and Principal Phase, Term (Month) |  |  |  |  | 7 years |  |  |  |  |
Proceeds from Lines of Credit, Total |  |  |  |  |  |  |  |  | $ 1,000,000 | $ 1,580,068
Non-revolving Credit Line 2 [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit, Total |  |  |  |  |  |  | $ 419,932 |  |  |
Non-revolving Credit Line 2 [Member] | After Interest Only Payment Period [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Amortization Period (Year) |  |  |  |  | 20 years |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  | 3.85% |  |  |  |  |
Non-revolving Credit Line 2 [Member] | Prime Rate [Member] | Interest Only Period of Payments [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.00% |  |  |  |  |
Non-revolving Credit Line 2 [Member] | Prime Rate [Member] | Interest Only Period of Payments [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 4.75% |  |  |  |  |
Non-revolving Credit Line 2 [Member] | Federal Home Loan Bank Rate [Member] | After Interest Only Payment Period [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 2.00% |  |  |  |  |
Non-revolving Credit Line 2 [Member] | Federal Home Loan Bank Rate [Member] | After Interest Only Payment Period [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 3.85% |  |  |  |  |
Non-revolving Credit Line 3 [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 2,500,000 |  |  |  |  | $ 2,500,000 |  |
Debt Instrument, Interest Only Phase, Term (Month) |  |  |  |  |  |  |  | 2 years |  |
Proceeds from Lines of Credit, Total |  |  | $ 379,765 |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  |  |  |  |  | $ 1,450,000 |
Non-revolving Credit Line 3 [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 3,000,000 |  |  |  |  |  |  |  |  |
Debt Instrument, Interest and Principal Phase, Term (Month) | 7 years |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit, Total |  | $ 670,235 |  |  |  |  |  |  |  |
Non-revolving Credit Line 3 [Member] | Interest Only Period of Payments [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 4.75% |  |  |  |  | 4.75% |  |
Non-revolving Credit Line 3 [Member] | Prime Rate [Member] | Interest Only Period of Payments [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  | 1.00% |  |

X
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