XML 74 R49.htm IDEA: XBRL DOCUMENT v3.24.0.1
Note 9 - Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Beginning balance $ 6,496 $ 5,001 $ 4,500
Expired research and development tax credits (50) 0 0
Additions based on tax positions related to the current year 1,967 1,495 501
Ending balance $ 8,413 $ 6,496 $ 5,001