Note 11 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Expected federal income tax benefit	$ (3,743,870)	$ (3,620,353)
Stock compensation	26,114	661,887
Other permanent items	1,081,835	154,036
Other deferred items	(350,113)	1,069,111
Effect of change in valuation allowance	2,986,034	1,735,319
Actual federal income tax benefit	$ 0	$ 0