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Stock Options and Restricted Stock Units - Stock-Based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Derivatives, Fair Value [Line Items]        
Total stock-based compensation     $ 1,565 $ 614
Equity Plans        
Derivatives, Fair Value [Line Items]        
Direct operating costs $ 56 $ 37 107 75
Selling and administrative expenses 972 299 1,458 539
Total stock-based compensation $ 1,028 $ 336 $ 1,565 $ 614