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Investment Securities (Tables)
3 Months Ended
Mar. 31, 2013
Investment Securities [Abstract]  
Investment securities

Investment securities as of March 31, 2013 and December 31, 2012 are summarized as follows:

March 31, 2013
 
 
 
 
Gross
 
 
Gross
 
 
 
 
 
Amortized
 
 
Unrealized
 
 
Unrealized
 
 
Fair
 
 
Cost
 
 
Gains
 
 
Losses
 
 
Value
 
Securities Available for Sale:
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Government Agencies
 
 
 
 
 
 
 
 
 
 
 
 
     Mortgage-Backed
 
$
284,283
 
 
$
471
 
 
$
(1,944
)
 
$
282,810
 
State, County & Municipal
 
 
4,173
 
 
 
44
 
 
 
(8
)
 
 
4,209
 
Corporate Obligations
 
 
1,000
 
 
 
98
 
 
 
--
 
 
 
1,098
 
Asset-Backed Securities
 
 
367
 
 
 
 --
 
 
 
(235
)
 
 
132
 
 
$
289,823
 
 
$
613
 
 
$
(2,187
)
 
$
288,249
 
Securities Held to Maturity:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     State, County and Municipal
 
$
43
 
 
$
--
 
 
$
--
 
 
$
43
 
 
December 31, 2012
 
 
 
 
Gross
 
 
Gross
 
 
 
 
 
 
Amortized
 
 
Unrealized
 
 
Unrealized
 
 
Fair
 
 
 
Cost
 
 
Gains
 
 
Losses
 
 
Value
 
Securities Available for Sale:
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Government Agencies
 
 
 
 
 
 
 
 
 
 
 
 
Mortgage-Backed
 
$
263,187
 
 
$
835
 
 
$
(962
)
 
$
263,060
 
State, County & Municipal
 
 
3,974
 
 
 
34
 
 
 
(4
)
 
 
4,004
 
Corporate Obligations
 
 
1,000
 
 
 
105
 
 
 
--
 
 
 
1,105
 
Asset-Backed Securities
 
 
366
 
 
 
--
 
 
 
(234
)
 
 
132
 
 
 
$
268,527
 
 
$
974
 
 
$
(1,200
)
 
$
268,301
 
Securities Held to Maturity:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
State, County and Municipal
 
$
41
 
 
$
1
 
 
$
--
 
 
$
42
 
 
Amortized cost and fair value of investment securities by contractual maturity
The amortized cost and fair value of investment securities as of March 31, 2013, by contractual maturity, are shown hereafter.  Expected maturities will differ from contractual maturities because issuers have the right to call or prepay obligations with or without call or prepayment penalties.  This is often the case with mortgage-backed securities, which are disclosed separately in the table below.
 
 
Securities
 
 
Available for Sale
 
 
Held to Maturity
 
 
Amortized Cost
 
 
Fair Value
 
 
Amortized Cost
 
 
Fair Value
 
 
 
 
 
 
 
 
 
 
 
 
 
Due After One Year Through Five Years
 
$
2,754
 
 
$
2,882
 
 
$
43
 
 
$
43
 
Due After Five Years Through Ten Years
 
 
1,765
 
 
 
1,779
 
 
 
--
 
 
 
--
 
Due After Ten Years
 
 
1,021
 
 
 
778
 
 
 
--
 
 
 
--
 
 
 
5,540
 
 
 
5,439
 
 
 
43
 
 
 
43
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mortgage-Backed Securities
 
 
284,283
 
 
 
282,810
 
 
 
--
 
 
 
--
 
 
$
289,823
 
 
$
288,249
 
 
$
43
 
 
$
43
 
 
Invested securities in a continuous unrealized loss position
Information pertaining to securities with gross unrealized losses at March 31, 2013 and December 31, 2012 aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows:
 
 
Less Than 12 Months
 
 
12 Months or Greater
 
 
Total
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Gross
 
 
 
 
 
Gross
 
 
 
 
 
Gross
 
 
Fair
 
 
Unrealized
 
 
Fair
 
 
Unrealized
 
 
Fair
 
 
Unrealized
 
 
Value
 
 
Losses
 
 
Value
 
 
Losses
 
 
Value
 
 
Losses
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  March 31, 2013
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   U.S. Government Agencies
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     Mortgage-Backed
 
$
200,421
 
 
$
(1,944
)
 
$
--
 
 
$
--
 
 
$
200,421
 
 
$
(1,944
)
   State, County and Municipal
 
 
646
 
 
 
(8
)
 
 
--
 
 
 
--
 
 
 
646
 
 
 
(8
)
   Asset-Backed Securities
 
 
--
 
 
 
--
 
 
 
132
 
 
 
(235
)
 
 
132
 
 
 
(235
)
 
$
201,067
 
 
$
(1,952
)
 
$
132
 
 
$
(235
)
 
$
201,199
 
 
$
(2,187
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  December 31, 2012
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   U.S. Government Agencies
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     Mortgage-Backed
 
$
142,104
 
 
$
(962
)
 
$
--
 
 
$
--
 
 
$
142,104
 
 
$
(962
)
   State, County and Municipal
 
 
1,431
 
 
 
(4
)
 
 
--
 
 
 
--
 
 
 
1,431
 
 
 
(4
)
   Asset-Backed Securities
 
 
--
 
 
 
--
 
 
 
132
 
 
 
(234
)
 
 
132
 
 
 
(234
)
 
$
143,535
 
 
$
(966
)
 
$
132
 
 
$
(234
)
 
$
143,667
 
 
$
(1,200
)