Investment Securities (Tables)

6 Months Ended

Jun. 30, 2015

Investment Securities [Abstract]

Amortized cost and fair value of the securities available for sale

The amortized cost and fair value of the securities available for sale are as follows:

(dollars in thousands)	June 30, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. government sponsored enterprises	$	152,216		87		221		152,082
State and political subdivisions		1,939		30		-		1,969
Mortgage backed securities and collateralized mortgage obligations - residential		434,780		550		6,125		429,205
Small Business Administration- guaranteed participation securities		98,059		-		2,736		95,323
Mortgage backed securities and collateralized mortgage obligations - commercial		10,560		-		161		10,399
Other		650		-		-		650
Total debt securities		698,204		667		9,243		689,628
Equity securities		35		-		-		35
Total securities available for sale	$	698,239		667		9,243		689,663

(dollars in thousands)	December 31, 2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. government sponsored enterprises	$	78,420		2		622		77,800
State and political subdivisions		2,232		39		-		2,271
Mortgage backed securities and collateralized mortgage obligations - residential		486,107		1,108		3,655		483,560
Corporate bonds		1,500		-		-		1,500
Small Business Administration - guaranteed participation securities		103,273		-		2,777		100,496
Mortgage backed securities and collateralized mortgage obligations - commercial		10,696		-		249		10,447
Other		650		-		-		650
Total debt securities		682,878		1,149		7,303		676,724
Equity securities		35		-		-		35
Total securities available for sale	$	682,913		1,149		7,303		676,759

Proceeds from sales and calls of securities available for sale, gross realized gains and gross realized losses

The proceeds from sales and calls of securities available for sale, gross realized gains and gross realized losses from sales and calls during the three and six months ended June 30, 2015 and 2014 are as follows:

(dollars in thousands)	Three months ended June 30,				Six months ended June 30,
	2015		2014		2015		2014
Proceeds from sales	$	-		-	$	22,945		-
Proceeds from calls		28,891		39,301		58,571		180,623
Gross realized gains		-		-		249		6
Gross realized losses		-		-		-		-

Amortized cost and fair value of the held to maturity securities

The amortized cost and fair value of the held to maturity securities are as follows:

(dollars in thousands)	June 30, 2015
	Amortized Cost		Gross Unrecognized Gains		Gross Unrecognized Losses		Fair Value
Mortgage backed securities and collateralized mortgage obligations - residential	$	53,576		3,225		-		56,801
Corporate bonds		9,967		921		-		10,888
Total held to maturity	$	63,543		4,146		-		67,689

(dollars in thousands)	December 31, 2014
	Amortized Cost		Gross Unrecognized Gains		Gross Unrecognized Losses		Fair Value
Mortgage backed securities and collateralized mortgage obligations - residential	$	60,986		3,334		-		64,320
Corporate bonds		9,960		1,062		-		11,022
Total held to maturity	$	70,946		4,396		-		75,342

Securities available for sale [Member]

Investment [Line Items]

Debt securities based on the securities final maturity

The following table distributes the debt securities included in the available for sale portfolio as of June 30, 2015, based on the securities’ final maturity (mortgage backed securities and collateralized mortgage obligations are stated using an estimated average life):

(dollars in thousands)	Amortized Cost		Fair Value
Due in one year or less	$	2,546		2,542
Due in one year through five years		497,021		493,286
Due after five years through ten years		198,619		193,782
Due after ten years		18		18
	$	698,204		689,628

Gross unrealized losses on investment securities and the related fair values aggregated by the length of time that individual securities have been in an unrealized loss position

Gross unrealized losses on securities available for sale and the related fair values aggregated by the length of time that individual securities have been in an unrealized loss position, were as follows:

(dollars in thousands)	June 30, 2015
	Less than 12 months				12 months or more				Total
	Fair Value		Gross Unreal. Loss		Fair Value		Gross Unreal. Loss		Fair Value		Gross Unreal. Loss
U.S. government sponsored enterprises	$	31,493		51		56,351		170		87,844		221
Mortgage backed securities and collateralized mortgage obligations - residential		183,404		2,307		188,924		3,818		372,328		6,125
Small Business Administration - guaranteed participation securities		7,973		164		87,350		2,572		95,323		2,736
Mortgage backed securities and collateralized mortgage obligations - commercial		-		-		10,399		161		10,399		161
Total	$	222,870		2,522		343,024		6,721		565,894		9,243

(dollars in thousands)	December 31, 2014
	Less than 12 months				12 months or more				Total
	Fair Value		Gross Unreal. Loss		Fair Value		Gross Unreal. Loss		Fair Value		Gross Unreal. Loss
U.S. government sponsored enterprises	$	12,840		81		54,959		541		67,799		622
Mortgage backed securities and collateralized mortgage obligations - residential		65,549		492		325,476		3,163		391,025		3,655
Small Business Administration - guaranteed participation securities		-		-		100,496		2,777		100,496		2,777
Mortgage backed securities and collateralized mortgage obligations - commercial		-		-		10,447		249		10,447		249
Total	$	78,389		573		491,378		6,730		569,767		7,303

Held to maturity securities [Member]

Investment [Line Items]

Debt securities based on the securities final maturity

The following table distributes the debt securities included in the held to maturity portfolio as of June 30, 2015, based on the securities’ final maturity (mortgage backed securities and collateralized mortgage obligations are stated using an estimated average life):

(dollars in thousands)	Amortized Cost		Fair Value
Due in one year or less	$	-		-
Due in one year through five years		63,543		67,689
Due in five years through ten years		-		-
	$	63,543		67,689