XML 55 R41.htm IDEA: XBRL DOCUMENT v3.22.2
Marketable Securities - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Marketable Securities [Abstract]        
Interest income, money market deposits $ 9 $ 2 $ 10 $ 4