Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Stock-based Compensation - Share-based Payment Expense (Details)

v3.20.2
Note 10 - Stock-based Compensation - Share-based Payment Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Share-based payment expense $ 7,701 $ 568 $ 12,102 $ 1,230
Research and Development Expense [Member]        
Share-based payment expense 933 157 1,733 275
General and Administrative Expense [Member]        
Share-based payment expense $ 6,768 $ 411 $ 10,369 $ 955