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Note 11 - Commitments - Lease Expense (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Cash paid for operating lease liabilities | $ 34,320 | $ 31,999 | $ 98,083 | $ 95,996
Cash paid for finance lease liabilities | $ 2,685 | $ 2,685 | $ 8,055 | 8,055
Right-of-use assets obtained in exchange for new operating lease liabilities (1) |  |  |  | 663,009
Property and equipment obtained in exchange for new finance lease liabilities |  |  |  | $ 43,242
Finance leases (years) (Year) |  | 1 year 3 months 18 days |  | 1 year 3 months 18 days
Operating leases (years) (Year) |  | 3 years 6 months |  | 3 years 6 months
Weighted-average discount rate – operating leases | 9.20% |  | 9.20% |
Weighted-average discount rate – finance leases | 9.20% |  | 9.20% |

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