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Note 5 - Property and Equipment (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Depreciation $ 3,013,176 $ 2,012,916 $ 5,720,493 $ 3,752,987