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CORE DEPOSIT INTANGIBLES (Tables)
12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets
Changes in the carrying amount of core deposit intangibles in the accompanying consolidated balance sheets as of December 31 are summarized as follows:
 
2017
 
2016
Beginning of year
$
3,308

 
$
3,846

Effect of acquisitions

 
42

Amortization
(584
)
 
(580
)
End of year
$
2,724

 
$
3,308

Schedule of Future Amortization Expense
The estimated aggregate future amortization expense for core deposit intangibles remaining as of December 31, 2017 was as follows:
Year Ended December 31,
Amount  
2018
$
584

2019
584

2020
584

2021
417

2022
183

Thereafter
372

 
$
2,724