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Note 8 - Leases - Operating Lease Balance Sheet Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Total lease cost | $ 34,145 | $ 63,973 | $ 145,828 | $ 163,401 |
Operating lease right-of-use assets | 50,465 |  | 50,465 |  | $ 197,355
Operating lease liabilities, current portion | 51,746 | 159,665 | 51,746 | 159,665 | 159,665
Operating lease liabilities, non-current portion | 0 | $ 37,829 | 0 | $ 37,829 | $ 37,829
Total operating lease liabilities | $ 51,746 |  | $ 51,746 |  |
Weighted average remaining lease term (in years) – operating leases (Year) | 11 months 4 days | 11 months 15 days | 11 months 4 days | 11 months 15 days |
Weighted average discount rate – operating leases | 5.50% | 5.50% | 5.50% | 5.50% |
Cash paid for amounts included in the measurement of operating lease liabilities for the nine months ended September 30, 2023 and 2022: |  |  | $ 197,946 | $ 144,985 |
2023 (3 months remaining) | $ 14,553 |  | 14,553 |  |
2024 | 38,808 |  | 38,808 |  |
Total future lease payments | 53,361 |  | 53,361 |  |
Less: imputed interest | (1,615) |  | (1,615) |  |
Total | 51,746 |  | 51,746 |  |
Approximation [Member] |  |  |  |  |
Operating lease right-of-use assets | 50,465 | $ 197,355 | 50,465 | 197,355 |
Total operating lease liabilities | 51,746 | 197,494 | 51,746 | 197,494 |
Total | $ 51,746 | $ 197,494 | $ 51,746 | $ 197,494 |

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