XML 79 R68.htm IDEA: XBRL DOCUMENT v3.21.2
Income Taxes (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Valuation Allowance [Abstract]    
Cumulative losses lookback period 2 years  
Deferred tax assets, impairment allowance $ 370 $ 0