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Goodwill and Intangible Assets - Schedule of Finite-lived Intangible Assets, Future Amortization Expense (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2019 $ 214
2020 177
2021 121
2022 58
2023 26
Total $ 596