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Discontinued Operations (Narrative) (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jan. 22, 2018
Dec. 31, 2018
Dec. 31, 2017
Discontinued Operations [Abstract]      
Sale price of of assets Denville $ 20,000    
Earn out provision of discontinued operations 3,000    
Proceeds From Divestiture Of Business   $ 15,754 $ 0
Contingent Consideration, Earn-out $ 3,000    
Earn out performance metrics period 2 years    
Amortization of Intangible Assets   5,431 2,442
Denville wholly owned subidiary, discontinued operations [member]      
Amortization of Intangible Assets   $ 47 $ 900