Note 9 - Convertible Notes - Convertible Notes (Details) - Convertible Debt [Member] - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Long-term Debt, gross	$ 761,472	$ 6,730,448
Less unamortized debt discount	11,946	0
Long-term Debt	749,526	6,730,448
Less current portion	749,526	6,652,448
Convertible notes payable, less current portion	0	78,000
Convertible Notes 1[Member]
Long-term Debt, gross	726,472	5,862,807
Convertible Notes 2 [Member]
Long-term Debt, gross	35,000	0
Convertible Notes 3 [Member]
Long-term Debt, gross	$ 0	$ 867,641

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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