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v3.20.2

Note 3 - Liquidity and Going Concern (Details Textual) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 17, 2020 shares | Apr. 13, 2020 USD ($) $ / shares shares | Oct. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Sep. 30, 2020 USD ($) shares | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Jul. 22, 2020 USD ($)
Stock Issued During Period, Value, New Issues |  |  |  |  |  | $ 1,800,001 | $ 3,626,600 |  | $ 303,000 |  |  |  |  |  |  |  |
Proceeds from Issuance of Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 |  |  |  |  |
Proceeds from Issuance or Sale of Equity, Total |  |  |  | $ 1,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent, Total |  |  |  |  | $ (953,940) |  |  | $ (1,941,586) |  |  |  | (3,120,145) | $ (5,680,151) | $ (7,100,000) | $ (3,600,000) | $ (1,600,000) |
Claims For Non Payment Of Contractual Obligations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  |  |  |  |  |  |  |  |  | $ 500,000 |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity, Total |  |  | $ 1,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
PNC Agreements [Member] | PNC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum Commitmnet for Equity Funding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000,000
PNC Agreements [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenants Fixed Charge Coverage Ratio |  |  |  |  |  |  | 0.75 |  |  |  |  |  |  |  |  |  |
PNC Agreements [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenants Fixed Charge Coverage Ratio |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Series B Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Convertible Preferred Stock |  |  |  | $ 1,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Series B Preferred Stock [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares | 170,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  |  |  |  |  |  |  |  |  | $ 478,000 |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 400,000 |  |  |  |  |  |
Purchase Agreement [Member] | Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Shares Agreed to Purchase (in shares) | shares |  | 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares |  | $ 10 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Preferred Stock and Preference Stock |  | $ 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 48,200 |  |  |  |  |  |
Purchase Agreement [Member] | Series A Preferred Stock [Member] | Other Investors [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale Of Stock, Contingent, Additional Offered Shares, Amount |  | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 |  |  |  |  |  |

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