Note 8 - Notes Payable - Note Payable (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Long-term debt	$ 791,667	$ 0
Total	1,198,151	450,000
Less current portion	(797,295)	(93,009)
Non-current portion	400,856	356,991
Paycheck Protection Program CARES Act [Member]
Long-term debt	$ 406,484	$ 450,000

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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Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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