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GOODWILL AND INTANGIBLE ASSETS (Tables)
12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in carrying values of goodwill and intangible assets
Years ended December 31, (in thousands)    2017      2016      2015  
Goodwill (1)               
Balance, beginning of period  $12,552   $12,552   $12,552 
Additions   1,263         
Impairment            
Balance, end of period  $13,815   $12,552   $12,552 
Core Deposit Intangibles               
Cost, beginning of period  $5,248   $5,248   $5,248 
New York branch purchase   633         
Impairment            
Cost, end of period   5,881    5,248    5,248 
Amortization, beginning of period   (3,511)   (2,910)   (2,258)
Amortization   (533)   (601)   (652)
Amortization, end of period   (4,044)   (3,511)   (2,910)
Core deposit intangibles, net  $1,837   $1,737   $2,338 
(1)Not subject to amortization.
Estimated annual amortization expense of core deposit intangibles
December 31, (in thousands)  CDI amortization
 2018   $454  
 2019    388  
 2020    321  
 2021    255  
 2022    192  
 2023    128  
 2024    61  
 2025    25  
 2026    13