Securities Available-for-Sale (Tables)

12 Months Ended

Dec. 31, 2014

Text Block [Abstract]

Summary of Securities Available-for-Sale

	December 31, 2014								December 31, 2013
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
(dollars in thousands)
U.S. Treasury	$	1,999	$	1	$	—	$	2,000	$	1,997	$	1	$	—	$	1,998
U.S. Government Sponsored Enterprises		—		—		—		—		9,995		9		—		10,004
SBA Backed Securities		6,684		33		—		6,717		7,270		32		—		7,302
U.S. Government Agency and Sponsored Enterprises Mortgage-Backed Securities		336,158		1,387		452		337,093		404,103		588		1,501		403,190
Privately Issued Residential Mortgage-Backed Securities		1,894		5		25		1,874		2,294		6		23		2,277
Obligations Issued by States and Political Subdivisions		97,657		—		873		96,784		37,578		15		870		36,723
Other Debt Securities		3,600		24		100		3,524		2,300		—		125		2,175
Equity Securities		218		180		—		398		406		170		—		576
Total	$	448,210	$	1,630	$	1,450	$	448,390	$	465,943	$	821	$	2,519	$	464,245

Estimated Maturity Distribution of Securities Available-for-Sale

The following table shows the estimated maturity distribution of the Company’s securities available-for-sale at December 31, 2014.

	Amortized Cost		Fair Value
(dollars in thousands)
Within one year	$	95,134	$	95,118
After one but within five years		207,506		208,518
After five but within ten years		135,803		135,733
More than ten years		8,049		7,224
Nonmaturing		1,718		1,797
Total	$	448,210	$	448,390

Continuous Unrealized Loss Position for 12 Months or Less and 12 Months or Longer

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at December 31, 2014. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for 12 months or less and a continuous loss position for 12 months and longer. There are 3 and 14 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 262 holdings at December 31, 2014.

	December 31, 2014
	Less Than 12 Months				12 Months or Longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
(dollars in thousands)
U.S. Government Sponsored Enterprise	$	—	$	—	$	—	$	—	$	—	$	—
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		24,457		85		77,585		367		102,042		452
Privately Issued Residential Mortgage-Backed Securities		—		—		678		25		678		25
Obligations Issued by States and Political Subdivisions		—		—		3,820		873		3,820		873
Other Debt Securities		—		—		1,400		100		1,400		100
Total temporarily impaired securities	$	24,457	$	85	$	83,483	$	1,365	$	107,940	$	1,450

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at December 31, 2013. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for 12 months or less and a continuous loss position for 12 months and longer. There are 47 and 7 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 234 holdings at December 31, 2013.

	December 31, 2013
	Less Than 12 Months				12 Months or Longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
(dollars in thousands)
U.S. Government Sponsored Enterprise	$	—	$	—	$	—	$	—	$	—	$	—
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		289,709		1,352		24,557		149		314,266		1,501
Privately Issued Residential Mortgage-Backed Securities		1,486		23		—		—		1,486		23
Obligations Issued by States and Political Subdivisions		—		—		3,820		870		3,820		870
Other Debt Securities		—		—		1,376		125		1,376		125
Total temporarily impaired securities	$	291,195	$	1,375	$	29,753	$	1,144	$	320,948	$	2,519