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Securities (Tables)
6 Months Ended
Jun. 30, 2017
Securities [Abstract]  
Book values and approximate fair values of investment securities

The book values and approximate fair values of investment securities at June 30, 2017 and December 31, 2016 are summarized as follows:

 

   June 30, 2017   December 31, 2016 
   Amortized   Fair   Unrealized   Amortized   Fair   Unrealized 
($ in thousands)  Cost   Value   Gains   (Losses)   Cost   Value   Gains   (Losses) 
                                 
Securities available for sale:                                        
  Government-sponsored enterprise securities  $16,498    16,498    7    (7)   17,497    17,490        (7)
  Mortgage-backed securities   156,934    156,601    647    (980)   151,001    148,065    155    (3,091)
  Corporate bonds   33,812    34,397    650    (65)   33,833    33,600    91    (324)
  Equity securities                   83    174    96    (5)
Total available for sale  $207,244    207,496    1,304    (1,052)   202,414    199,329    342    (3,427)
                                         
Securities held to maturity:                                        
  Mortgage-backed securities  $72,257    72,005    10    (262)   80,585    79,283        (1,302)
  State and local governments   55,609    57,692    2,090    (7)   49,128    50,912    1,815    (31)
Total held to maturity  $127,866    129,697    2,100    (269)   129,713    130,195    1,815    (1,333)
Schedule of information regarding securities with unrealized losses

The following table presents information regarding securities with unrealized losses at June 30, 2017:

 

($ in thousands)

 

  Securities in an Unrealized
Loss Position for
Less than 12 Months
   Securities in an Unrealized
Loss Position for
More than 12 Months
   Total 
   Fair Value   Unrealized
Losses
   Fair Value   Unrealized
Losses
   Fair Value   Unrealized
Losses
 
  Government-sponsored enterprise securities  $7,991    7            7,991    7 
  Mortgage-backed securities   131,117    865    16,909    377    148,026    1,242 
  Corporate bonds           935    65    935    65 
  State and local governments   817    7            817    7 
      Total temporarily impaired securities  $139,925    879    17,844    442    157,769    1,321 

 

The following table presents information regarding securities with unrealized losses at December 31, 2016:

 

($ in thousands)

 

  Securities in an Unrealized
Loss Position for
Less than 12 Months
   Securities in an Unrealized
Loss Position for
More than 12 Months
   Total 
   Fair Value   Unrealized
Losses
   Fair Value   Unrealized
Losses
   Fair Value   Unrealized Losses 
  Government-sponsored enterprise securities  $7,990    7            7,990    7 
  Mortgage-backed securities   196,999    3,841    19,001    552    216,000    4,393 
  Corporate bonds   27,027    259    935    65    27,962    324 
  Equity securities           7    5    7    5 
  State and local governments   801    31            801    31 
      Total temporarily impaired securities  $232,817    4,138    19,943    622    252,760    4,760 
Schedule of book values and approximate fair values of investment securities by contractual maturity

The book values and approximate fair values of investment securities at June 30, 2017, by contractual maturity, are summarized in the table below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

 

   Securities Available for Sale   Securities Held to Maturity 
   Amortized   Fair   Amortized   Fair 
($ in thousands)  Cost   Value   Cost   Value 
                 
Debt securities                    
Due within one year  $        1,873    1,888 
Due after one year but within five years   16,498    16,498    23,718    24,580 
Due after five years but within ten years   28,812    29,287    24,251    25,405 
Due after ten years   5,000    5,110    5,767    5,819 
Mortgage-backed securities   156,934    156,601    72,257    72,005 
Total securities  $207,244    207,496    127,866    129,697