Note 6 - Commitments and Contingencies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2019
Operating Lease, Remaining Lease Term	2 years 109 days
Operating Lease, Liability, Current	$ 111,477		$ 100,000
Operating Lease, Liability, Noncurrent	135,566		$ 200,000
Lessee, Operating Lease, Discount Rate			10.00%
Lessee, Operating Lease, Renewal Term			5 years
Operating Lease, Expense	$ 100,000	100,000
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	90.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	4.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 68,000	$ 68,000