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Securities
 3 Months Ended
Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]  
SECURITIES
SECURITIES
Trading Securities

The Company had trading securities of $763,000 and $356,000 as of March 31, 2016 and December 31, 2015, respectively. These securities are held in a rabbi trust and will be used for future payments associated with the Company’s non-qualified 401(k) Restoration Plan and Non-Qualified Deferred Compensation Plan.
Available for Sale and Held to Maturity Securities
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 below:
 
March 31, 2016
 
December 31, 2015
 
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
$
29,466

 
$
856

 
$
—

 
$
30,322

 
$
29,958

 
$
261

 
$
(4
)
 
$
30,215

Agency mortgage-backed securities
200,081

 
6,950

 
(20
)
 
207,011

 
207,693

 
4,227

 
(983
)
 
210,937

Agency collateralized mortgage obligations
76,481

 
1,001

 
(325
)
 
77,157

 
64,157

 
179

 
(752
)
 
63,584

State, county, and municipal securities
4,529

 
127

 
—

 
4,656

 
4,543

 
116

 
—

 
4,659

Single issuer trust preferred securities issued by banks
2,350

 
8

 
(125
)
 
2,233

 
2,865

 
8

 
(81
)
 
2,792

Pooled trust preferred securities issued by banks and insurers
2,216

 
—

 
(716
)
 
1,500

 
2,217

 
—

 
(645
)
 
1,572

Small business administration pooled securities

39,942

 
849

 
—

 
40,791

 
40,472

 
87

 
(110
)
 
40,449

Equity securities
14,373

 
423

 
(239
)
 
14,557

 
13,235

 
374

 
(568
)
 
13,041

Total available for sale securities
$
369,438

 
$
10,214

 
$
(1,425
)
 
$
378,227

 
$
365,140

 
$
5,252

 
$
(3,143
)
 
$
367,249

Held to maturity securities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Treasury securities
$
1,008

 
$
84

 
$
—

 
$
1,092

 
$
1,009

 
$
55

 
$
—

 
$
1,064

Agency mortgage-backed securities
161,452

 
6,123

 
—

 
167,575

 
167,134

 
3,460

 
(219
)
 
170,375

Agency collateralized mortgage obligations
258,620

 
3,866

 
(1,007
)
 
261,479

 
267,348

 
1,195

 
(3,652
)
 
264,891

State, county, and municipal securities
225

 
—

 
—

 
225

 
225

 
2

 
—

 
227

Single issuer trust preferred securities issued by banks
1,500

 
17

 
—

 
1,517

 
1,500

 
22

 
—

 
1,522

Small business administration pooled securities

34,836

 
1,040

 
—

 
35,876

 
35,291

 
437

 
(64
)
 
35,664

Corporate debt securities
—

 
—

 
—

 
—

 
5,000

 
6

 
—

 
5,006

Total held to maturity securities
$
457,641

 
$
11,130

 
$
(1,007
)
 
$
467,764

 
$
477,507

 
$
5,177

 
$
(3,935
)
 
$
478,749

Total
$
827,079

 
$
21,344

 
$
(2,432
)
 
$
845,991

 
$
842,647

 
$
10,429

 
$
(7,078
)
 
$
845,998


When securities are sold, the adjusted cost of the specific security sold is used to compute the gain or loss on the sale. The Company had a $29,000 realized loss during the three months ended March 31, 2016 and no realized gains or losses during the three months ended March 31, 2015 on equity securities available for sale. There were no gains or losses on the Company's fixed income securities during the periods ending March 31, 2016 and 2015.
 
The actual maturities of certain securities may differ from the contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. A schedule of the contractual maturities of securities available for sale and securities held to maturity as of March 31, 2016 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
$
500

 
$
500

 
$
276

 
$
277

Due after one year to five years
33,068

 
33,743

 
15,263

 
15,875

Due after five to ten years
96,153

 
98,802

 
29,468

 
30,705

Due after ten years
225,344

 
230,625

 
412,634

 
420,907

Total debt securities
$
355,065

 
$
363,670

 
$
457,641

 
$
467,764

Equity securities
$
14,373

 
$
14,557

 
$
—

 
$
—

Total
$
369,438

 
$
378,227

 
$
457,641

 
$
467,764


Inclusive in the table above is $17.1 million of callable securities in the Company’s investment portfolio at March 31, 2016.
The carrying value of securities pledged to secure public funds, trust deposits, repurchase agreements and for other purposes, as required or permitted by law, was $292.7 million and $314.1 million at March 31, 2016 and December 31, 2015, respectively.
At March 31, 2016 and December 31, 2015, the Company had no investments in obligations of individual states, counties, or municipalities which exceeded 10% of stockholders’ equity.
Other-Than-Temporary Impairment ("OTTI")
The Company continually reviews investment securities for the existence of OTTI, taking into consideration current market conditions, the extent and nature of changes in fair value, issuer rating changes and trends, the credit worthiness of the obligor of the security, volatility of earnings, current analysts’ evaluations, the Company’s intent to sell the security, or whether it is more likely than not that the Company will be required to sell the debt security before its anticipated recovery, as well as other qualitative factors. The term “other-than-temporary” is not intended to indicate that the decline is permanent, but indicates that the prospects for a near-term recovery of value is not necessarily favorable, or that there is a lack of evidence to support a realizable value equal to or greater than the carrying value of the investment.
The following tables show the gross unrealized losses and fair value of the Company’s investments in an unrealized loss position, which the Company has not deemed to be OTTI, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position:

 
March 31, 2016
 
 
 
Less than 12 months
 
12 months or longer
 
Total
 
# of holdings
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
(Dollars in thousands)
Agency mortgage-backed securities
3

 
$
694

 
$
(2
)
 
$
3,501

 
$
(18
)
 
$
4,195

 
$
(20
)
Agency collateralized mortgage obligations
9

 
—

 
—

 
72,566

 
(1,332
)
 
72,566

 
(1,332
)
Single issuer trust preferred securities issued by banks and insurers
2

 
979

 
(66
)
 
1,000

 
(59
)
 
1,979

 
(125
)
Pooled trust preferred securities issued by banks and insurers
1

 
—

 
—

 
1,500

 
(716
)
 
1,500

 
(716
)
Equity securities
29

 
2,545

 
(118
)
 
2,249

 
(121
)
 
4,794

 
(239
)
Total temporarily impaired securities
44

 
$
4,218

 
$
(186
)
 
$
80,816

 
$
(2,246
)
 
$
85,034

 
$
(2,432
)

 
December 31, 2015
 
 
 
Less than 12 months
 
12 months or longer
 
Total
 
# of holdings
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
(Dollars in thousands)
U.S.government agency securities
3

 
$
1,990

 
$
(4
)
 
$
—

 
$
—

 
$
1,990

 
$
(4
)
Agency mortgage-backed securities
57

 
112,648

 
(1,062
)
 
4,297

 
(140
)
 
116,945

 
(1,202
)
Agency collateralized mortgage obligations
23

 
147,707

 
(1,420
)
 
80,927

 
(2,984
)
 
228,634

 
(4,404
)
Single issuer trust preferred securities issued by banks and insurers
2

 
1,018

 
(33
)
 
1,018

 
(48
)
 
2,036

 
(81
)
Pooled trust preferred securities issued by banks and insurers
1

 
—

 
—

 
1,572

 
(645
)
 
1,572

 
(645
)
Small business administration pooled securities
3

 
37,986

 
(174
)
 
—

 
—

 
37,986

 
(174
)
Equity securities
34

 
3,481

 
(189
)
 
4,971

 
(379
)
 
8,452

 
(568
)
Total temporarily impaired securities
123

 
$
304,830

 
$
(2,882
)
 
$
92,785

 
$
(4,196
)
 
$
397,615

 
$
(7,078
)

The Company does not intend to sell these investments and has determined based upon available evidence that it is more likely than not that the Company will not be required to sell the security before the recovery of its amortized cost basis. As a result, the Company does not consider these investments to be OTTI. The Company made this determination by reviewing various qualitative and quantitative factors regarding each investment category, such as current market conditions, extent and nature of changes in fair value, issuer rating changes and trends, volatility of earnings, and current analysts’ evaluations.
As a result of the Company’s review of these qualitative and quantitative factors, the causes of the impairments listed in the table above by category are as follows at March 31, 2016:

•
U.S. Government Agency Securities, Agency Mortgage-Backed Securities, Agency Collateralized Mortgage Obligations and Small Business Administration Pooled Securities: These portfolios have contractual terms that generally do not permit the issuer to settle the securities at a price less than the current par value of the investment. The decline in market value of these securities is attributable to changes in interest rates and not credit quality. Additionally, these securities are either implicitly or explicitly guaranteed by the U.S. Government or one of its agencies.
•
Single Issuer Trust Preferred Securities: This portfolio consists of two securities, one of which is below investment grade. The unrealized loss on these securities is attributable to the illiquid nature of the trust preferred market in the current economic environment. Management evaluates various financial metrics for the issuers, including regulatory capital ratios of the issuers.
•
Pooled Trust Preferred Securities: This portfolio consists of one below investment grade security which is performing. The unrealized loss on this security is attributable to the illiquid nature of the trust preferred market and the significant risk premiums required in the current economic environment. Management evaluates collateral credit and instrument structure, including current and expected deferral and default rates and timing. In addition, discount rates are determined by evaluating comparable spreads observed currently in the market for similar instruments.
•
Equity Securities: This portfolio consists of mutual funds and other equity investments. During some periods, the mutual funds in the Company’s investment portfolio may have unrealized losses resulting from market fluctuations as well as the risk premium associated with that particular asset class. For example, emerging market equities tend to trade at a higher risk premium than U.S. government bonds and thus, will fluctuate to a greater degree on both the upside and the downside. In the context of a well-diversified portfolio, however, the correlation amongst the various asset classes represented by the funds serves to minimize downside risk. The Company evaluates each mutual fund in the portfolio regularly and measures performance on both an absolute and relative basis. A reasonable recovery period for positions with an unrealized loss is based on management’s assessment of general economic data, trends within a particular asset class, valuations, earnings forecasts and bond durations. The Company has the ability and intent to hold these equity securities until a recovery of fair value.
The following table shows the total OTTI that the Company recorded for the periods indicated:
 
Three Months Ended
 
March 31
 
2016
 
2015
 
(Dollars in thousands)
Gross change in OTTI recorded on certain investments
$
—

 
$
84

Portion of OTTI recognized in OCI
—

 
(84
)
Total credit related OTTI recognized in earnings
$
—

 
$
—


The following table shows the cumulative credit related component of OTTI for the periods indicated:
 
Three Months Ended
 
March 31
 
2016
 
2015
 
(Dollars in thousands)
Balance at beginning of period
$
—

 
$
(9,997
)
Add
 
 
 
Incurred on securities not previously impaired
—

 
—

Incurred on securities previously impaired
—

 
—

Less
 
 
 
Securities sold during the period
—

 
—

Reclassification due to changes in Company's intent
—

 
—

Increases in cash flow expected to be collected
—

 
—

Balance at end of period
$
—

 
$
(9,997
)