Note 7 - Notes Payable and Advances from Related Party - Notes Payable and Advances from Related Party (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020	Dec. 30, 2020
Notes payable	$ 2,883,333	$ 1,902,237	$ 1,902,237
Advance from related party	200,000	0	$ 0
Avenue Ventures Note Payable [Member]
Notes payable	2,083,333	0
Advance from Noreen Griffin [Member]
Advance from related party	200,000	0
Short-term Notes Payable [Member]
Notes payable	$ 800,000	$ 1,902,237

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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+ Details