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Earnings Per Share - Basic (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Basic Earnings Per share        
Net income $ 2,301 $ 6,087 $ 8,924 $ 11,303
Weighted average shares outstanding (in shares) 12,449,283 13,533,724 12,592,126 13,515,752
Basic earnings per share (in dollars per share) $ 0.18 $ 0.45 $ 0.71 $ 0.84