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Earnings Per Share - Basic (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Basic Earnings Per share    
Net income $ 6,623 $ 5,216
Weighted average shares outstanding (in shares) 12,734,971 13,646,489
Basic earnings per share (in dollars per share) $ 0.52 $ 0.38