Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Cash and Cash Equivalents, at Carrying Value, Total	$ 28,249,452		$ 28,202,615
Long-term Debt, Total	0
Accounts Receivable, Allowance for Credit Loss, Current	0		0
Accounts Receivable, after Allowance for Credit Loss, Total	336,397		354,196
Contract with Customer, Liability, Total	530,797		$ 186,951
Research and Development Expense, Total	101,612	$ 143,322
Income Tax Expense (Benefit), Total	0
Unrecognized Tax Benefits, Ending Balance	0
zPREDICTA [Member]
Contract with Customer, Liability, Total	$ 476,677