Securities (Tables)

3 Months Ended

Mar. 31, 2014

Investments Debt And Equity Securities [Abstract]

Fair Value of Securities

The fair value of securities is as follows:

March 31, 2014	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for sale
U.S. Treasury and federal agencies	$	43,098	$	121	$	(578	)	$	42,641
State and municipal		174,538		5,623		(1,828	)		178,333
Federal agency collateralized mortgage obligations		115,584		1,126		(1,874	)		114,836
Federal agency mortgage-backed pools		179,625		3,553		(1,605	)		181,573
Private labeled mortgage-backed pools		1,024		32		—			1,056
Corporate notes		970		21		—			991
Total available for sale investment securities	$	514,839	$	10,476	$	(5,885	)	$	519,430
Held to maturity, State and Municipal	$	9,910	$	—	$	—		$	9,910

December 31, 2013	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for sale
U.S. Treasury and federal agencies	$	43,808	$	133	$	(807	)	$	43,134
State and municipal		176,670		4,405		(3,177	)		177,898
Federal agency collateralized mortgage obligations		116,047		1,242		(2,583	)		114,706
Federal agency mortgage-backed pools		170,006		3,172		(2,284	)		170,894
Private labeled mortgage-backed pools		1,188		38		—			1,226
Corporate notes		708		25		—			733
Total available for sale investment securities	$	508,427	$	9,015	$	(8,851	)	$	508,591
Held to maturity, State and Municipal	$	9,910	$	—	$	—		$	9,910

Amortized Cost and Fair Value of Securities Available for Sale and Held to Maturity

The amortized cost and fair value of securities available for sale and held to maturity at March 31, 2014 and December 31, 2013, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

	March 31, 2014				December 31, 2013
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
Available for sale
Within one year	$	4,449	$	4,486	$	3,643	$	3,663
One to five years		43,451		43,959		49,198		49,627
Five to ten years		111,942		114,654		106,225		107,424
After ten years		58,764		58,866		62,120		61,051
		218,606		221,965		221,186		221,765
Federal agency collateralized mortgage obligations		115,584		114,836		116,047		114,706
Federal agency mortgage-backed pools		179,625		181,573		170,006		170,894
Private labeled mortgage-backed pools		1,024		1,056		1,188		1,226
Total available for sale investment securities	$	514,839	$	519,430	$	508,427	$	508,591
Held to maturity
Within one year	$	9,910	$	9,910	$	9,910	$	9,910
One to five years		—		—		—		—
Total held to maturity investment securities	$	9,910	$	9,910	$	9,910	$	9,910

Gross Unrealized Losses and Fair Value of Company's Investments

The following table shows the gross unrealized losses and the 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.

	Less than 12 Months					12 Months or More					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
March 31, 2014	Value		Losses			Value		Losses			Value		Losses
U.S. Treasury and federal agencies	$	31,303	$	(578	)	$	—	$	—		$	31,303	$	(578	)
State and municipal		47,875		(1,578	)		5,040		(250	)		52,915		(1,828	)
Federal agency collateralized mortgage obligations		42,858		(675	)		26,382		(1,199	)		69,240		(1,874	)
Federal agency mortgage-backed pools		69,597		(1,605	)		—		—			69,597		(1,605	)
Total temporarily impaired securities	$	191,633	$	(4,436	)	$	31,422	$	(1,449	)	$	223,055	$	(5,885	)
	Less than 12 Months					12 Months or More					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
December 31, 2013	Value		Losses			Value		Losses			Value		Losses
U.S. Treasury and federal agencies	$	32,099	$	(807	)	$	—	$	—		$	32,099	$	(807	)
State and municipal		57,078		(2,993	)		3,206		(184	)		60,284		(3,177	)
Federal agency collateralized mortgage obligations		64,445		(2,121	)		8,601		(462	)		73,046		(2,583	)
Federal agency mortgage-backed pools		87,919		(2,284	)		—		—			87,919		(2,284	)
Total temporarily impaired securities	$	241,541	$	(8,205	)	$	11,807	$	(646	)	$	253,348	$	(8,851	)

Sales of Securities Available for Sale

	Three months ended March 31
	2014		2013
Sales of securities available for sale (Unaudited)
Proceeds	$	—	$	23,485
Gross gains		—		376
Gross losses		—		(8	)