Annual report pursuant to Section 13 and 15(d)

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

v3.23.1
Note 12 - Stock-based Compensation - Share-based Payment Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Share-Based Payment Arrangement, Expense $ 5,207 $ 12,949
Research and Development Expense [Member]    
Share-Based Payment Arrangement, Expense 2,218 3,789
General and Administrative Expense [Member]    
Share-Based Payment Arrangement, Expense $ 2,989 $ 9,160