XML 58 R42.htm IDEA: XBRL DOCUMENT v3.19.2
Note 5 - Share Based Compensation - Expenses for Continuing Operations (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Share-based compensation expense $ 131,054 $ 149,542 $ 657,088 $ 699,475
Selling, General and Administrative Expenses [Member]        
Share-based compensation expense 115,526 128,620 568,613 599,766
Research and Development Expense [Member]        
Share-based compensation expense $ 15,528 $ 20,922 $ 88,475 $ 99,709