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Goodwill and Intangible Assets
12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
Goodwill and Intangible Assets
 
The following table summarizes the Corporation’s acquired goodwill and intangible assets as of December 31:
 
 
 
2017
 
2016
(Dollar amounts in thousands)
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Gross Carrying
Amount
 
Accumulated
Amortization
Goodwill
 
$
10,288

 
$

 
$
10,288

 
$

Core deposit intangibles
 
4,426

 
3,945

 
4,259

 
3,699

Total
 
$
14,714

 
$
3,945

 
$
14,547

 
$
3,699

 
 
 
 
 
 
 
 
 

 
6.
Goodwill and Intangible Assets (continued)
 
Goodwill resulted from four acquisitions. During 2016, the Corporation recorded $6.6 million of goodwill related to the acquisition of United American Savings Bank (see Note 20). Goodwill represents the excess of the total purchase price paid for the acquisitions over the fair value of the identifiable assets acquired, net of the fair value of the liabilities assumed. Goodwill is not amortized but is evaluated for impairment on an annual basis or whenever events or changes in circumstances indicate the carrying value may not be recoverable. Impairment exists when a reporting unit’s carrying amount exceeds its fair value. The Corporation has selected November 30 as the date to perform the annual impairment test. No goodwill impairment charges were recorded in 2017 or 2016. Goodwill is the only intangible asset with an indefinite life on the Corporation’s balance sheet.
 
The core deposit intangible asset, resulting from three acquisitions, is amortized using the double declining balance method over a weighted average estimated life of the related deposits and is not estimated to have a significant residual value. The Corporation recorded intangible amortization expense totaling $246,000 and $226,000 in 2017 and 2016, respectively.
 
The estimated amortization expense of the core deposit intangible for the years ending December 31, are as follows:
 
 
Amortization
(Dollar amounts in thousands)
 
Expense
2018
 
$
236

2019
 
55

2020
 
43

2021
 
33

2022
 
29

Thereafter
 
85

 
 
$
481