XML 51 R40.htm IDEA: XBRL DOCUMENT v3.21.2
Intangible Assets - Amortization Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization expense $ 193 $ 276 $ 647 $ 818