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Leases (Schedule of Supplemental Cash Flow Information Operating Lease) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating cash flows from operating leases $ 1,601 $ 1,541
Right-of-use assets obtained in exchange for lease obligations (non-cash):    
Operating leases $ 7,201 $ 1,524