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BUSINESS COMBINATIONS - PCI loans acquired from Premara (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 15, 2017
BUSINESS COMBINATIONS      
Contractually required payments $ 20,598 $ 24,823 $ 11,752
Nonaccretable difference 1,694 1,962 1,768
Cash flows expected to be collected 18,904 22,861 9,984
Accretable yield 3,191 3,593 1,392
Fair value at acquisition date $ 15,713 $ 19,268 $ 8,592