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Intangible Assets and Goodwill - Estimated Amortization Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Intangible Assets and Goodwill        
Amortization of Intangible Assets $ 400 $ 200 $ 730 $ 398
Estimated amortization expense        
Remainder of 2021 732   732  
2022 1,463   1,463  
2023 1,463   1,463  
2024 1,442   1,442  
2025 and thereafter 3,952   3,952  
Total $ 9,052   $ 9,052