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Note 4 - PistolStar, Inc. Acquisition (Details Textual) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($)
Repayments of Notes Payable |  | $ 130,000 | $ 130,000 |
PistolStar [Member] |  |  |  |
Business Combination, Consideration Transferred, Total | $ 2,500,000 |  | 2,356,000 |
Payments to Acquire Businesses, Net of Cash Acquired, Total | 2,000,000 |  | 2,000,000 |
Business Combination, Consideration Transferred, Liabilities Incurred | 500,000 |  | 464,000 |
Business Combination, Working Capital Adjustment | $ 108,000 |  | $ 108,000 |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.00% | 4.00% |
PistolStar [Member] | Promissory Note [Member] |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 4.00% |  |  |
Debt Instrument, Number of Installments | 4 |  |  |
Debt Instrument, Term (Month) | 1 year |  |  |

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