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Earnings Per Common Share (Narrative) (Details) - shares
3 Months Ended 6 Months Ended
Oct. 22, 2018
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Weighted average stock anti dilutive effect excluded from calculation of earnings per share   0 433,493 47,420 442,221
Series C Convertible Preferred Stock          
Preferred stock, shares issued 84,000        
Conversion of Convertable Securities, Conversion rate, Ratio 86.4225%