Note 8 - Notes Payable - Note Payable (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Long-term debt	$ 916,667	$ 0
Total	1,516,667	450,000
Less current portion	(855,134)	(93,009)
Non-current portion	661,533	356,991
Paycheck Protection Program CARES Act [Member]
Long-term debt	450,000	450,000
Tellenger Working Capital [Member]
Long-term debt	$ 150,000	$ 0

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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