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Employee Stock Ownership Plan (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Employee Stock Ownership Plan    
Employee Stock Ownership Plan (ESOP), number of committed-to-be-released shares 15,294 6,480
Average fair value of per share $ 8.80 $ 10.57
Employee Stock Ownership Plan (ESOP), Compensation expense $ 128 $ 69