Note 12 - Commitments - Lease Expense (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash paid for operating lease liabilities	$ 31,882	$ 31,882
Cash paid for finance lease liabilities	$ 3,417	$ 2,685
Finance leases (years) (Year)	4 years 9 months	9 months 14 days
Operating leases (years) (Year)	2 years	3 years
Weighted-average discount rate – operating leases	9.20%	9.20%
Weighted-average discount rate – finance leases	9.20%	9.20%