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Earnings Per Common Share (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Earnings Per Share [Abstract]      
Stock Conversion Rate 86.4225    
Weighted average stock anti dilutive effect excluded from calculation of earnings per share 859,322 507,786  
Convertible Preferred Stock $ 84,000   $ 84,000
Series C Convertible Preferred Stock      
Preferred stock, shares issued 84,000   84,000