Note 8 - Commitments and Contingencies - Lease Cost (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	[1]
Operating lease cost	$ 135,842	$ 131,191
Amortization of lease assets	977,771	79,495
Interest on lease liabilities	251,228	21,108
Total finance lease costs	$ 1,228,999	$ 100,603

[1] Represent amounts under ASC 840.