Note 5 - Debt - Interest Expense (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| GRA Note | $ 1,286 | $ 143,524 |
| Senior Notes [Member] | ||
| GRA Note | 633 | 1,727 |
| Paycheck Protection Program CARES Act [Member] | ||
| GRA Note | 653 | 1,203 |
| Insurance Premium Financing Costs[Member] | ||
| GRA Note | 1,743 | |
| Convertible Debt [Member] | ||
| GRA Note | $ 138,851 | |