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SECURITIES (Tables)
 12 Months Ended
Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-for-sale Securities and Held-to-maturity Securties
The following table presents a summary of the amortized cost, gross unrealized holding gains and losses, other-than-temporary impairment recorded in other comprehensive income and fair value of securities available for sale and securities held to maturity for the periods indicated:
 
December 31, 2014
 
December 31, 2013
 
Amortized
Cost
Gross
Unrealized
Gains
Gross Unrealized
Losses
Fair
Value
 
Amortized
Cost
Gross
Unrealized
Gains
Gross Unrealized
Losses
Fair
Value
 
(Dollars in thousands)
Available for sale securities
 
 
 
 
 
 
 
 
 
U.S. government agency securities
$
41,369

$
139

$
(22
)
$
41,486

 
$
41,331

$
3

$
(885
)
$
40,449

Agency mortgage-backed securities
211,168

7,203

(693
)
217,678

 
232,742

6,405

(4,556
)
234,591

Agency collateralized mortgage obligations
63,059

599

(623
)
63,035

 
58,765

490

(1,102
)
58,153

State, county, and municipal securities
5,106

117

—

5,223

 
5,439

1

(28
)
5,412

Single issuer trust preferred securities issued by banks
2,913

12

(16
)
2,909

 
2,960

14

(22
)
2,952

Pooled trust preferred securities issued by banks and insurers (1)
7,906

195

(1,780
)
6,321

 
8,083

—

(4,242
)
3,841

Equity securities
11,572

567

(237
)
11,902

 
10,997

762

(295
)
11,464

Total available for sale securities
$
343,093

$
8,832

$
(3,371
)
$
348,554

 
$
360,317

$
7,675

$
(11,130
)
$
356,862

Held to maturity securities
 
 
 
 
 
 
 
 
 
U.S. treasury securities
$
1,010

$
63

$
—

$
1,073

 
$
1,011

$
31

$
—

$
1,042

Agency mortgage-backed securities
159,522

5,422

—

164,944

 
155,067

1,917

(1,033
)
155,951

Agency collateralized mortgage obligations
207,995

2,141

(3,478
)
206,658

 
187,388

824

(6,176
)
182,036

State, county, and municipal securities
424

4

—

428

 
678

7

—

685

Single issuer trust preferred securities issued by banks
1,500

—

(23
)
1,477

 
1,503

23

—

1,526

Corporate debt securities
5,002

117

—

5,119

 
5,005

210

—

5,215

Total held to maturity securities
$
375,453

$
7,747

$
(3,501
)
$
379,699

 
$
350,652

$
3,012

$
(7,209
)
$
346,455

Total
$
718,546

$
16,579

$
(6,872
)
$
728,253

 
$
710,969

$
10,687

$
(18,339
)
$
703,317


(1)
Gross unrealized gains and gross unrealized losses include $230,000 and $2.3 million of net non-credit related OTTI at December 31, 2014 and December 31, 2013, respectively.
Summary of Realized Gains and Losses on Available-for-sale Securities
When securities are sold, the adjusted cost of the specific security sold is used to compute the gain or loss on the sale. The following table shows the gross realized gains and losses on available for sale securities for the periods indicated:
 
Years Ended December 31
 
2014
 
2013
 
2012
 
(Dollars in thousands)
Gross realized gains on fixed income securities
$
121

 
$
258


$
5

Gross realized losses on fixed income securities
(21
)

—

 
—

Gain (loss) on equity investments
$
91

 
$
(28
)
 
$
111

Net gains on investments
$
191

 
$
230

 
$
116
Schedule of Contractual Maturities of Securities
A schedule of the contractual maturities of securities available for sale and securities held to maturity as of December 31, 2014 is presented below:
 
Available for Sale
 
Held to Maturity
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
 
(Dollars in thousands)
Due in one year or less
$
—

 
$
—

 
$
200

 
$
202

Due after one year to five years
36,094

 
36,819

 
5,454

 
5,586

Due after five to ten years
90,680

 
91,060

 
31,805

 
32,429

Due after ten years
204,747

 
208,773

 
337,994

 
341,482

Total debt securities
$
331,521

 
$
336,652

 
$
375,453

 
$
379,699

Equity securities
$
11,572

 
$
11,902

 
$
—

 
$
—

Total
$
343,093


$
348,554

 
$
375,453

 
$
379,699
Schedule of Gross Unrealized Losses and Fair Value of Investments


 
 
 
December 31, 2014
 
 
 
Less than 12 months
 
12 months or longer
 
Total
Description of securities
# of
holdings
 
Fair Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair Value
 
Unrealized
Losses
 
 
 
(Dollars in thousands)
U.S. government agency securities
22

 
$
21,950

 
$
(22
)
 
$
—

 
$
—

 
$
21,950

 
$
(22
)
Agency mortgage-backed securities
17

 
3,471

 
(1
)
 
42,222

 
(692
)
 
45,693

 
(693
)
Agency collateralized mortgage obligations
14

 
35,083

 
(331
)
 
94,974

 
(3,770
)
 
130,057

 
(4,101
)
Single issuer trust preferred securities issued by banks and insurers
2

 
2,553

 
(39
)
 
—

 
—

 
2,553

 
(39
)
Pooled trust preferred securities issued by banks and insurers
2

 
—

 
—

 
2,681

 
(1,356
)
 
2,681

 
(1,356
)
Equity securities
23

 
1,480

 
(74
)
 
4,072

 
(163
)
 
5,552

 
(237
)
Total temporarily impaired securities
80

 
$
64,537

 
$
(467
)
 
$
143,949

 
$
(5,981
)
 
$
208,486

 
$
(6,448
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2013
 
 
 
Less than 12 months
 
12 months or longer
 
Total
Description of securities
# of
holdings
 
Fair Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair Value
 
Unrealized
Losses
 
 
 
(Dollars in thousands)
U.S.government agency securities
39

 
$
39,950

 
$
(885
)
 
$
—

 
$
—

 
$
39,950

 
$
(885
)
Agency mortgage-backed securities
124

 
202,004

 
(5,217
)
 
5,108

 
(372
)
 
207,112

 
(5,589
)
Agency collateralized mortgage obligations
19

 
183,721

 
(7,278
)
 
—

 
—

 
183,721

 
(7,278
)
State, county, and municipal securities
13

 
3,838

 
(28
)
 
—

 
—

 
3,838

 
(28
)
Single issuer trust preferred securities issued by banks and insurers
2

 
1,341

 
(22
)
 
—

 
—

 
1,341

 
(22
)
Pooled trust preferred securities issued by banks and insurers
2

 
—

 
—

 
2,300

 
(1,913
)
 
2,300

 
(1,913
)
Equity securities
22

 
2,376

 
(90
)
 
3,520

 
(205
)
 
5,896

 
(295
)
Total temporarily impaired securities
221

 
$
433,230

 
$
(13,520
)
 
$
10,928

 
$
(2,490
)
 
$
444,158

 
$
(16,010
)
Schedule of Other Than Temporary Impairment
The following table shows the total OTTI that the Company recorded for the periods indicated:
 
Years Ended December 31
 
2014
 
2013
 
2012
 
(Dollars in thousands)
Gross change in OTTI recorded on certain investments
$
2,098

 
$
588

 
$
678

Portion of OTTI recognized in OCI
(2,098
)
 
(588
)
 
(754
)
Total credit related OTTI recognized in earnings
$
—

 
$
—

 
$
(76
)
Summary of Cumulative Credit Related Component of OTTI
The following table shows the cumulative credit related component of OTTI for the periods indicated:
 
2014
 
2013
 
2012
 
(Dollars in thousands)
Balance at beginning of period
$
(9,997
)
 
$
(10,847
)
 
$
(10,771
)
Add
 
 
 
 
 
Incurred on securities not previously impaired
—

 
—

 
—

Incurred on securities previously impaired
—

 
—

 
(76
)
Less
 
 
 
 
 
Securities sold during the period
—

 
850

 
—

Reclassification due to changes in Company’s intent
—

 
—

 
—

Increases in cash flow expected to be collected
—

 
—

 
—

Balance at end of period
$
(9,997
)
 
$
(9,997
)
 
$
(10,847
)