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Goodwill (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Goodwill [Abstract]    
Goodwill $ 9,016,000 $ 9,016,000
Estimated fair value, goodwill impairment carrying value percentage 24.00%  
Goodwill impaired   $ 0