Note 14 - Income Taxes - Deferred Tax Assets (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Deferred tax asset - net operating losses	$ 7,700,000	$ 3,400,000
Deferred tax asset valuation allowance	(7,700,000)	(3,400,000)
Net deferred tax asset	$ 0	$ 0