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v3.20.2

Note 3 - Liquidity and Going Concern (Details Textual) - USD ($) |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 01, 2020 | Apr. 01, 2020 | Jan. 03, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 26, 2020 | Jun. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jul. 17, 2020
Sale of Stock, Number of Shares Issued in Transaction |  |  |  | $ 1,800,001 |  | $ 303,000 | $ 5,426,601 |  | $ 303,000 |  |  |  |
Net Income (Loss) Attributable to Parent, Total |  |  |  | $ (1,527,509) |  | $ (1,244,478) | (2,166,205) |  | $ (3,738,565) | $ (7,100,000) | $ (3,600,000) | $ (1,600,000) |
Claims For Non Payment Of Contractual Obligations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate Claims Made or Threatened |  |  |  |  |  |  | 500,000 |  |  |  |  |  |
Conversion to an Accounts Receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  |  |  |  |  | 478,000 |  |  |  |  |  |
Series A Preferred Stock [Member] | Conversion to an Accounts Receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  | $ 482,000 |  |  |  |  |  |  |  |  |  |  |
Accounts Receivable, Shares Converted to Preferred Stock (in shares) |  | 48,200 |  |  |  |  |  |  |  |  |  |  |
Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  |  |  |  |  | 400,000 |  |  |  |  |
Purchase Agreement [Member] | Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Shares Agreed to Purchase (in shares) |  |  | 500,000 |  |  |  |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) |  |  | $ 10 |  |  |  |  |  |  |  |  |  |
Sale of Stock, Offering Amount |  |  | $ 5,000,000 |  |  |  |  |  |  |  |  |  |
Accounts Receivable, Shares Converted to Preferred Stock (in shares) | 48,200 |  |  |  |  |  |  |  |  |  |  |  |
Purchase Agreement [Member] | Series A Preferred Stock [Member] | Other Investors [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Additional Authorized Shares |  |  | $ 2,000,000 |  |  |  |  |  |  |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  |  |  |  |  | $ 1,000,000 |  |  |  |  |  |
PNC Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenants Fixed Charge Coverage Ratio (Rate) |  |  |  |  | 75.00% |  |  |  |  |  |  |  |
PNC Agreements [Member] | Subsequent Event [Member] | PNC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum Commitmnet for Equity Funding |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000,000

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