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Accumulated Other Comprehensive Income (Loss) (Tables)
6 Months Ended
Jun. 30, 2017
Equity [Abstract]  
Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component Net of Tax

The following table presents the changes in accumulated other comprehensive income (loss) by component net of tax for the three and six month periods ended June 30, 2017 and 2016:

 

(Dollars in thousands)

   Pretax     Tax
Effect
    After-tax  

Three months ended June 30, 2017

      

Balance as of March 31, 2017

   $ (821   $ 278     $ (543

Unrealized holding gain on available-for-sale securities arising during the period

     916       (312     604  

Amortization of held-to-maturity discount resulting from transfer

     26       (9     17  
  

 

 

   

 

 

   

 

 

 

Total other comprehensive income

     942       (321     621  
  

 

 

   

 

 

   

 

 

 

Balance as of June 30, 2017

   $ 121     $ (43   $ 78  
  

 

 

   

 

 

   

 

 

 

Six months ended June 30, 2017

      

Balance as of December 31, 2016

   $ (1,323   $ 449     $ (874

Unrealized holding gain on available-for-sale securities arising during the period

     1,386       (471     915  

Amortization of held-to-maturity discount resulting from transfer

     58       (21     37  
  

 

 

   

 

 

   

 

 

 

Total other comprehensive income

     1,444       (492     952  
  

 

 

   

 

 

   

 

 

 

Balance as of June 30, 2017

   $ 121     $ (43   $ 78  
  

 

 

   

 

 

   

 

 

 

Three months ended June 30, 2016

      

Balance as of March 31, 2016

   $ 223     $ (76   $ 147  

Unrealized holding gain on available-for-sale securities arising during the period

     519       (176     343  

Amortization of held-to-maturity discount resulting from transfer

     271       (93     178  
  

 

 

   

 

 

   

 

 

 

Total other comprehensive income

     790       (269     521  
  

 

 

   

 

 

   

 

 

 

Balance as of June 30, 2016

   $ 1,013     $ (345   $ 668  
  

 

 

   

 

 

   

 

 

 

Six months ended June 30, 2016

      

Balance as of December 31, 2015

   $ (631   $ 214     $ (417

Unrealized holding gain on available-for-sale securities arising during the period

     1,327       (451     876  

Amortization of held-to-maturity discount resulting from transfer

     317       (108     209  
  

 

 

   

 

 

   

 

 

 

Total other comprehensive income

     1,644       (559     1,085  
  

 

 

   

 

 

   

 

 

 

Balance as of June 30, 2016

   $ 1,013     $ (345   $ 668