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Loans - Schedule of Change in Accretable Yields of Acquired Loans (Details) - Acquired Loans Accounted For Under ASC 310-30 - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]    
Balance at beginning of period $ 642 $ 891
Acquisitions of impaired loans 354 0
Reclassification from non-accretable differences 0 0
Accretion to loan interest income (128) (137)
Balance at end of period $ 868 $ 754