Note 6 - Notes Payable - Notes Payable (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Notes Payable, Gross	$ 0	$ 4,676,755
Debt Instrument, Unamortized Discount, Total	0	244,830
Notes Payable	0	4,431,925
Convertible Promissory Note [Member]
Notes Payable, Gross	0	1,721,776
Promissory Note, One [Member]
Notes Payable, Gross	0	1,490,833
Promissory Note, Two [Member]
Notes Payable, Gross	$ 0	$ 1,464,146