Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Stockholders' Equity - Share-based Compensation Expense (Details)

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Note 4 - Stockholders' Equity - Share-based Compensation Expense (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Share-based compensation expense $ 128,778 $ 196,742 $ 466,744 $ 435,577
Research and Development Expense [Member]        
Share-based compensation expense 22,917 200,337 87,500
General and Administrative Expense [Member]        
Share-based compensation expense $ 128,778 $ 173,825 $ 266,407 $ 348,077