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Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets
Changes in the gross carrying amount, accumulated amortization and net book value of core deposit intangibles were as follows:
 
Year Ended December 31,
 
2016
 
2015
 
2014
 
(In Thousands)
Gross carrying amount
$
347

 
$
347

 
$
347

Less: accumulated amortization
145

 
83

 
12

Net book value
$
202

 
$
264

 
$
335

Amortization during the period
$
62

 
$
71

 
$
12

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense of core deposit intangibles for fiscal years 2017 through 2021 are as follows:
(In Thousands)
 
Estimate for the year ended December 31,
 
2017
$
54

2018
47

2019
40

2020
35

2021
26

 
$
202