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Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
Current $ 471 $ 382 $ (111)
Deferred 496 152 (111)
Total $ 967 $ 534 $ (222)