Note 7 - Subsequent Events (Details Textual) - Employee and Directors [Member] - Subsequent Event [Member]	1 Months Ended
	Jul. 31, 2020 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	3,600,000
Common Stock, Capital Shares Reserved for Future Issuance (in shares)	3,600,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 0.35