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Earnings Per Share - Basic and Diluted Shares Calculation (Details) - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Earnings Per Share Basic And Diluted [Line Items]    
Basic weighted average common shares outstanding 18,857,657 18,280,788
Diluted 18,857,657 18,281,638
Warrant [Member]    
Earnings Per Share Basic And Diluted [Line Items]    
Effect of Exercise of Stock Options and Warrants   850