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Covid-19 (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Apr. 16, 2020
Apr. 30, 2020
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Restructuring Cost and Reserve [Line Items]          
Coronavirus, Aid, Relief, And Economic Securities (CARES) Act, deferred tax assets, valuation allowance     $ 100   $ 100
Coronavirus, Aid, Relief, And Economic Securities (CARES) Act, deferred tax assets, income tax benefit     $ 100    
Proceeds from government assistance   $ 700     700
Proceeds from Paycheck Protection Program loan       $ 0 $ 2,865
Paycheck Protection Program, CARES Act          
Restructuring Cost and Reserve [Line Items]          
Proceeds from Paycheck Protection Program loan $ 2,900