Note 5 - Subsequent Events (Details Textual) - shares |
1 Months Ended | 6 Months Ended |
---|---|---|
Aug. 31, 2021 |
Jun. 30, 2021 |
|
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exchanged (in shares) | 3,500,000 | |
Stock Issued During Period, Shares, Stock Options Exchanged for Common Shares (in shares) | 2,100,000 | |
Subsequent Event [Member] | ||
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exchanged (in shares) | 1,500,000 | |
Stock Issued During Period, Shares, Stock Options Exchanged for Common Shares (in shares) | 900,000 |