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Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Basic:    
Net Income $ 7,668 $ 6,552
Preferred Dividend (30) (36)
Earnings Applicable to Common Stock $ 7,638 $ 6,516
Basic EPS $ 0.44 $ 0.40
Weighted average number of basic shares outstanding 17,437 16,428
Diluted:    
Diluted EPS $ 0.44 $ 0.39
Weighted average number of diluted shares outstanding 17,552 16,584
Convertible Preferred Stock $7.00 Series [Member]    
Diluted:    
Preferred Dividend $ 17 $ 17
Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock (in shares) 115 115
Convertible Preferred Stock $8.00 Series [Member]    
Diluted:    
Preferred Dividend $ 6
Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock (in shares) 41