Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Equity - Stock-based Compensation (Details)

v3.20.2
Note 5 - Equity - Stock-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Stock-based compensation expense $ 460 $ 489 $ 1,265 $ 1,155
General and Administrative Expense [Member]        
Stock-based compensation expense 366 430 1,029 1,003
Research and Development Expense [Member]        
Stock-based compensation expense $ 94 $ 59 $ 236 $ 152