Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Share-based Compensation - Share-based Compensation Expense (Details)

v3.20.2
Note 12 - Share-based Compensation - Share-based Compensation Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Total share-based compensation $ 508 $ 451 $ 1,337 $ 763
Research and Development Expense [Member]        
Total share-based compensation 141 151 379 276
General and Administrative Expense [Member]        
Total share-based compensation $ 367 $ 300 $ 958 $ 487