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Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Balance, beginning of year $ 374 $ 358
Increases related to prior year tax positions 4,125 8
Decreases related to prior year tax positions (85) 0
Increases related to current year tax positions 606 8
Balance, end of year $ 5,020 $ 374