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Investment Securities (Details 2) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Debt Securities, Available-for-sale [Abstract]      
Estimated fair value $ 24,600   $ 25,600
Net gains/(losses) recognized during the period (2,977) $ 1,266  
Less: Realized net gains/(losses) recognized during the period on equity securities sold (19) (30)  
Unrealized net gains/(losses) recognized during the period on equity securities still held $ (2,958) $ 1,296