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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Income Tax Disclosure [Abstract]        
Income tax expense $ 97 $ 84 $ 105 $ 207
Unrecognized tax benefits $ 0 $ 0 $ 0 $ 0