Note 7 - Convertible Notes - Convertible Notes (Details) - Convertible Debt [Member] - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Long-term Debt, gross	$ 721,472	$ 721,472
Less unamortized debt discount	78,142	78,142
Long-term Debt	643,330	643,330
Less current portion	643,330	643,330
Convertible notes payable, less current portion	0	0
Convertible Notes 1[Member]
Long-term Debt, gross	576,472	576,472
Convertible Notes 2 [Member]
Long-term Debt, gross	$ 145,000	$ 145,000

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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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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