Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.2
Note 11 - Stock-based Compensation - Share-based Payment Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Share-based Payment Arrangement, Expense $ 769 $ 779 $ 2,643 $ 3,293
Research and Development Expense [Member]        
Share-based Payment Arrangement, Expense 271 537 923 1,483
General and Administrative Expense [Member]        
Share-based Payment Arrangement, Expense $ 498 $ 242 $ 1,720 $ 1,810