Securities (Tables)

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Held to maturity securities

Amortized costs and fair values of securities held to maturity are summarized as follows.

	September 30, 2015
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Held to Maturity
Obligations of states and political subdivisions	$	1,500	$	—	$	(125	)	$	1,375
Total	$	1,500	$	—	$	(125	)	$	1,375

	December 31, 2014
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Held to Maturity
Obligations of states and political subdivisions	$	1,500	$	—	$	(103	)	$	1,397
Total	$	1,500	$	—	$	(103	)	$	1,397

The amortized cost and fair value of securities held to maturity as of September 30, 2015, by contractual maturity are shown below. 

	September 30, 2015
(Dollars in thousands)	Amortized Cost		Fair Value
Held to Maturity
Due after ten years	$	1,500	$	1,375
Total	$	1,500	$	1,375

Amortized costs and fair values of securities available for sale

Amortized costs and fair values of securities available for sale are summarized as follows:

	September 30, 2015
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for Sale
U.S. government agencies	$	67,119	$	656	$	(58	)	$	67,717
U.S. Treasury securities	50		—		—			50
Obligations of states and political subdivisions	75,131		1,908		(470		)	76,569
Mortgage-backed securities:
Agency	137,836		4,282		(434		)	141,684
Non-agency	14,914		28		(60		)	14,882
Other asset backed securities	54,958		505		(475		)	54,988
Corporate securities	17,554		2		(667		)	16,889
Total	$	367,562	$	7,381	$	(2,164	)	$	372,779

	December 31, 2014
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for Sale
U.S. government agencies	$	41,317	$	283	$	(203	)	$	41,397
Obligations of states and political subdivisions	55,541		2,408		(209		)	57,740
Mortgage-backed securities:
Agency	169,257		4,698		(742		)	173,213
Non-agency	28,235		115		(227		)	28,123
Other asset backed securities	31,338		433		(58		)	31,713
Corporate securities	16,545		131		(599		)	16,077
Total	$	342,233	$	8,068	$	(2,038	)	$	348,263

Amortized cost and fair value of securities available for sale by contractual maturity

The amortized cost and fair value of securities available for sale as of September 30, 2015, by contractual maturity are shown below.  Maturities may differ from contractual maturities in corporate and mortgage-backed securities because the securities and mortgages underlying the securities may be called or repaid without any penalties.  Therefore, these securities are not included in the maturity categories in the following maturity summary.

	September 30, 2015
(Dollars in thousands)	Amortized Cost		Fair Value
Due in one year or less	$	320	$	321
Due after one year through five years	10,639		11,067
Due after five years through ten years	25,868		25,675
Due after ten years	123,027		124,162
Mortgage-backed securities	152,750		156,566
Other asset backed securities	54,958		54,988
Total	$	367,562	$	372,779

Investments in continuous unrealized loss position

Investments in an unrealized loss position that are temporarily impaired are as follows:

(Dollars in thousands)	Less than Twelve Months					Twelve Months or Greater					Total
September 30, 2015	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Held to Maturity
Obligations of states and political subdivisions	$	1,375	$	(125	)	$	—	$	—		$	1,375	$	(125	)
Total	$	1,375	$	(125	)	$	—	$	—		$	1,375	$	(125	)
Available for Sale
U.S. government agencies	$	12,515	$	(24	)	$	2,481	$	(34	)	$	14,996	$	(58	)
Obligations of states and political subdivisions	18,340		(306		)	978		(164		)	19,318		(470		)
Mortgage-backed securities:
Agency	18,710		(148		)	9,372		(286		)	28,082		(434		)
Non-agency	9,370		(46		)	1,861		(14		)	11,231		(60		)
Other asset backed securities	21,564		(220		)	12,244		(255		)	33,808		(475		)
Corporate securities	13,193		(414		)	2,747		(253		)	15,940		(667		)
Total	$	93,692	$	(1,158	)	$	29,683	$	(1,006	)	$	123,375	$	(2,164	)

(Dollars in thousands)	Less than Twelve Months					Twelve Months or Greater					Total
December 31, 2014	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Held to Maturity
Obligations of states and political subdivisions	$	1,397	$	(103	)	$	—	$	—		$	1,397	$	(103	)
Total	$	1,397	$	(103	)	$	—	$	—		$	1,397	$	(103	)
Available for Sale
U.S. government agencies	$	15,331	$	(65	)	$	5,833	$	(138	)	$	21,164	$	(203	)
Obligations of states and political subdivisions	2,780		(14		)	3,456		(195		)	6,236		(209		)
Mortgage-backed securities:
Agency	28,065		(327		)	11,027		(415		)	39,092		(742		)
Non-agency	15,488		(167		)	4,730		(60		)	20,218		(227		)
Other asset backed securities	6,594		(45		)	1,077		(13		)	7,671		(58		)
Corporate securities	9,192		(391		)	792		(208		)	9,984		(599		)
Total	$	77,450	$	(1,009	)	$	26,915	$	(1,029	)	$	104,365	$	(2,038	)