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SECURITIES (Tables)
12 Months Ended
Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]  
Amortized Cost and Estimated Fair Value of Securities Available for Sale
Amortized cost and estimated fair value of securities available for sale at December 31, 2015 and 2014 are as follows (in thousands):

 
2015
 
2014
 
Amortized Cost
 
Estimated Fair Value
 
Amortized Cost
 
Estimated Fair Value
Obligations of U.S. Government and
    U.S. Government sponsored enterprises
$
99,430

 
$
100,166

 
$
180,535

 
$
181,673

Mortgage-backed securities, residential
199,680

 
198,366

 
60,787

 
61,660

Collateralized mortgage obligations

 

 
335

 
338

Obligations of states and political subdivisions
43,695

 
44,426

 
30,677

 
31,451

Corporate bonds and notes
747

 
752

 
1,502

 
1,533

SBA loan pools
643

 
647

 
1,296

 
1,304

Trust preferred securities

 

 
1,906

 
2,028

Corporate stocks
285

 
463

 
285

 
520

Total
$
344,480

 
$
344,820

 
$
277,323

 
$
280,507


Gross unrealized gains and losses on securities available for sale at December 31, 2015 and 2014, were as follows (in thousands):

 
2015
 
2014
 
Unrealized
Gains
 
Unrealized
Losses
 
Unrealized
Gains
 
Unrealized
Losses
Obligations of U.S. Government and
    U.S. Government sponsored enterprises
$
752

 
$
16

 
$
1,300

 
$
162

Mortgage-backed securities, residential
427

 
1,741

 
892

 
19

Collateralized mortgage obligations

 

 
3

 

Obligations of states and political subdivisions
737

 
6

 
802

 
28

Corporate bonds and notes
5

 

 
35

 
4

SBA loan pools
5

 
1

 
11

 
3

Trust preferred securities

 

 
122

 

Corporate stocks
178

 

 
235

 

Total
$
2,104

 
$
1,764

 
$
3,400

 
$
216

Amortized Cost and Estimated Fair Value of Debt Securities Available for Sale by Contractual Maturity
Securities not due at a single maturity date are shown separately (in thousands):

 
December 31, 2015
 
Amortized
Cost
 
Fair
Value
Within one year
$
49,359

 
$
49,621

After one, but within five years
68,076

 
68,847

After five, but within ten years
26,437

 
26,876

After ten years

 

Mortgage-backed securities, residential
199,680

 
198,366

SBA loan pools
643

 
647

Total
$
344,195

 
$
344,357

Proceeds from Sales and Calls of Securities Resulting in Gains or Losses
The proceeds from sales and calls of securities resulting in gains or losses are listed below (in thousands):
 
2015
 
2014
 
2013
Proceeds
$
72,718

 
$
36,258

 
$
2,650

Gross gains
$
410

 
$
6,869

 
$
16

Gross losses
$
(38
)
 
$

 
$

Tax expense
$
142

 
$
2,641

 
$
6

Amortized Cost and Estimated Fair Value of Securities Held to Maturity
Amortized cost and estimated fair value of securities held to maturity at December 31, 2015 and 2014 are as follows (in thousands):
 
2015
 
2014
 
Amortized Cost
 
Estimated Fair Value
 
Amortized Cost
 
Estimated Fair Value
Obligations of states and political subdivisions
$
4,566

 
$
4,822

 
$
5,175

 
$
5,535

Time deposits with other financial institutions

 

 
656

 
662

 
$
4,566

 
$
4,822

 
$
5,831

 
$
6,197


Gross unrealized gains and losses on securities held to maturity at December 31, 2015 and 2014, were as follows (in thousands):
 
2015
 
2014
 
Unrealized
Gains
 
Unrealized
Losses
 
Unrealized
Gains
 
Unrealized
Losses
Obligations of states and political subdivisions
$
256

 
$

 
$
360

 
$

Time deposits with other financial institutions

 

 
6

 

Total
$
256

 
$

 
$
366

 
$

Contractual Maturities of Securities Held to Maturity
The contractual maturity of securities held to maturity is as follows at December 31, 2015 (in thousands):

 
December 31, 2015
 
Amortized
Cost
 
Fair
Value
Within one year
$
2,266

 
$
2,290

After one, but within five years
2,103

 
2,308

After five, but within ten years
197

 
224

After ten years

 

Total
$
4,566

 
$
4,822

Investment Securities Available for Sale in Unrealized Loss Position
The following table summarizes the investment securities available for sale with unrealized losses at December 31, 2015 and December 31, 2014 by aggregated major security type and length of time in a continuous unrealized position (in thousands):

 
 
Less than 12 months
 
12 months or longer
 
Total
 
 
Fair Value
 
Unrealized
Losses
 
Fair Value
 
Unrealized
Losses
 
Fair Value
 
Unrealized
Losses
2015
 
Obligations of U.S. Government and U.S. Government sponsored enterprises
 
$
15,169

 
$
16

 
$

 
$

 
$
15,169

 
$
16

Mortgage-backed securities, residential
 
177,058

 
1,741

 

 

 
177,058

 
1,741

Obligations of states and political subdivisions
 
3,756

 
4

 
592

 
2

 
4,348

 
6

SBA loan pools
 

 

 
251

 
1

 
251

 
1

Total temporarily impaired securities
 
$
195,983

 
$
1,761

 
$
843

 
$
3

 
$
196,826

 
$
1,764


 
 
Less than 12 months
 
12 months or longer
 
Total
 
 
Fair Value
 
Unrealized
Losses
 
Fair Value
 
Unrealized
Losses
 
Fair Value
 
Unrealized
Losses
2014
 
Obligations of U.S. Government and U.S. Government sponsored enterprises
 
$
57,512

 
$
108

 
$
4,945

 
$
54

 
$
62,457

 
$
162

Mortgage-backed securities, residential
 
11,051

 
19

 

 

 
11,051

 
19

Obligations of states and political subdivisions
 
4,625

 
22

 
1,056

 
6

 
5,681

 
28

Corporate bonds and notes
 

 

 
243

 
4

 
243

 
4

Corporate stocks
 
276

 
1

 
316

 
2

 
592

 
3

Total temporarily impaired securities
 
$
73,464

 
$
150

 
$
6,560

 
$
66

 
$
80,024

 
$
216

Roll Forward of Cumulative Credit Losses Recognized in Earnings
The table below presents a roll forward of the cumulative credit losses recognized in earnings for the periods ended December 31, 2015, 2014 and 2013 (in thousands):
 
2015
 
2014
 
2013
Beginning balance, January 1,
$

 
$
1,939

 
$
3,506

Additions/Subtractions:
 

 
 

 
 

Reductions for previous credit losses realized on securities sold during the year

 

 
(1,596
)
Reductions for previous credit losses realized on securities liquidated during the year

 
(1,939
)
 

Increases to the amount related to the credit loss for which other-than-temporary impairment was previously recognized

 

 
29

Ending balance, December 31,
$

 
$

 
$
1,939

Securities Pledged to Secure Securities Sold under Agreements to Repurchase
The table below shows the securities pledged to secure securities sold under agreements to repurchase at December 31, 2015 and 2014 (in thousands):
 
2015
 
2014
 
Amortized Cost
 
Fair Value
 
Amortized Cost
 
Fair Value
Obligations of U.S. Government and U. S.
  Government sponsored enterprises
$
22,988

 
$
23,267

 
$
36,195

 
$
36,641

Mortgage-backed securities, residential
20,453

 
20,589

 
7,934

 
8,350

Collateralized mortgage obligations

 

 
48

 
48

Total
$
43,441

 
$
43,856

 
$
44,177

 
$
45,039