Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Stock-based Compensation - Share-based Payment Expense (Details)

v3.23.1
Note 11 - Stock-based Compensation - Share-based Payment Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Share-based Payment Arrangement, Expense $ 1,874 $ 2,514
Research and Development Expense [Member]    
Share-based Payment Arrangement, Expense 652 946
General and Administrative Expense [Member]    
Share-based Payment Arrangement, Expense $ 1,222 $ 1,568