Investments (Tables)

6 Months Ended

Jun. 30, 2016

Investments [Abstract]

Aggregate Carrying And Approximate Market Values Of Available-For-Sale Securities

The amortized cost and estimated fair values of the Company's securities are shown in the following table (in thousands):

	June 30, 2016								December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Securities available-for-sale:
U.S. Treasuries and U.S.
government agencies	$	4	$	—	$	—	$	4	$	5	$	—	$	—	$	5
Obligations of states and
political subdivisions	57,224		2,070		3		59,291		49,725		979		7		50,697
Mortgage-backed securities:
U.S. government agencies	306,201		7,035		128		313,108		287,933		2,285		2,021		288,197
Private label	1,108		3		—		1,111		1,222		9		—		1,231
Trust preferred securities	6,046		1,178		901		6,323		6,550		463		1,155		5,858
Corporate securities	23,930		436		126		24,240		18,793		221		321		18,693
Total Debt Securities	394,513		10,722		1,158		404,077		364,228		3,957		3,504		364,681
Marketable equity  securities	2,136		1,283		—		3,419		2,131		1,142		—		3,273
Investment funds	1,525		18		—		1,543		1,525		—		13		1,512
Total Securities
Available-for-Sale	$	398,174	$	12,023	$	1,158	$	409,039	$	367,884	$	5,099	$	3,517	$	369,466

Aggregate Carrying And Approximate Market Values Of Held-To-Maturity Securities

	June 30, 2016								December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Securities held-to-maturity:
Mortgage-backed securities
US government agencies	$	79,208	$	3,736	$	—	$	82,944	$	84,937	$	1,949	$	76	$	86,810
Trust preferred securities	4,000		—		—		4,000		4,000		—		—		4,000
Total Securities
Held-to-Maturity	$	83,208	$	3,736	$	—	$	86,944	$	88,937	$	1,949	$	76	$	90,810
Other investment securities:
Non-marketable equity securities	$	10,203	$	—	$	—	$	10,203	$	12,915	$	—	$	—	$	12,915
Total Other Investment
Securities	$	10,203	$	—	$	—	$	10,203	$	12,915	$	—	$	—	$	12,915

Gross Unrealized Losses And Fair Value Of Investments

The following table shows the gross unrealized losses and fair value of the Company’s investments aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands):

	June 30, 2016
	Less Than Twelve Months				Twelve Months or Greater				Total
	Estimated Fair Value		Unrealized Loss		Estimated Fair Value		Unrealized Loss		Estimated Fair Value		Unrealized Loss
Securities available-for-sale:
Obligations of states and political subdivisions	$	480	$	3	$	—	$	—	$	480	$	3
Mortgage-backed securities:
U.S. Government agencies	16		—		17,020		128		17,036		128
Trust preferred securities	—		—		4,618		901		4,618		901
Corporate securities	2,273		122		1,025		4		3,298		126
Total	$	2,769	$	125	$	22,663	$	1,033	$	25,432	$	1,158

	December 31, 2015
	Less Than Twelve Months				Twelve Months or Greater				Total
	Estimated Fair Value		Unrealized Loss		Estimated Fair Value		Unrealized Loss		Estimated Fair Value		Unrealized Loss
Securities available-for-sale:
Obligations of states and political subdivisions	$	2,406	$	5	$	128	$	2	$	2,534	$	7
Mortgage-backed securities:
U.S. Government agencies	129,612		688		34,044		1,333		163,656		2,021
Trust preferred securities	—		—		4,769		1,155		4,769		1,155
Corporate securities	10,856		174		2,231		147		13,087		321
Investment funds	—		—		1,488		13		1,488		13
Total	$	142,874	$	867	$	42,660	$	2,650	$	185,534	$	3,517

Amortized Cost And Estimated Fair Value Of Debt Securities By Contractual Maturity

The amortized cost and estimated fair value of debt securities at June 30, 2016, by contractual maturity, are shown in the following table (in thousands).  Expected maturities will differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.  Mortgage-backed securities have been allocated to their respective maturity groupings based on their contractual maturity.

	Amortized Cost		Estimated Fair Value
Securities Available-for-Sale
Due in one year or less	$	4,026	$	4,084
Due after one year through five years	25,063		17,326
Due after five years through ten years	35,413		44,738
Due after ten years	330,011		337,929
	$	394,513	$	404,077
Securities Held-to-Maturity
Due in one year or less	$	—	$	—
Due after one year through five years	—		—
Due after five years through ten years	—		—
Due after ten years	83,208		86,944
	$	83,208	$	86,944

Gross Gains And Losses Realized

Gross gains and gross losses realized by the Company from investment security transactions are summarized in the table below (in thousands).

	Three months ended June 30,					Six months ended June 30,
	2016			2015		2016			2015
Gross realized gains	$	1,256		$	2,116	$	1,256		$	2,130
Gross realized losses	(411		)	—		(411		)	—
Net investment security gains	$	845		$	2,116	$	845		$	2,130