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 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Share-based compensation expense $ 294,600 $ 134,695 $ 761,344 $ 570,273
Research and Development Expense [Member]        
Share-based compensation expense 22,917 200,337 110,417
General and Administrative Expense [Member]        
Share-based compensation expense $ 294,600 $ 111,778 $ 561,007 $ 459,856