Investment Securities (Tables)

3 Months Ended

Mar. 31, 2014

Investment Securities

Schedule of amortized cost and estimated fair value of securities

	March 31, 2014
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
	(in thousands)
Investment securities available for sale:
Municipal bonds	$	77,062	$	848	$	(586	)	$	77,324
Mortgage-backed securities	126,921		65		(2,168		)	124,818
Total securities available for sale	$	203,983	$	913	$	(2,754	)	$	202,142

	December 31, 2013
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
	(in thousands)
Investment securities available for sale:
U.S. Treasury	$	73	$	8	$	—		$	81
Municipal bonds	95,388		589		(1,850		)	94,127
Mortgage-backed securities	165,857		12		(3,988		)	161,881
Total securities available for sale	$	261,318	$	609	$	(5,838	)	$	256,089

	March 31, 2013
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
	(in thousands)
Investment securities available for sale:
U.S. Treasury	$	74	$	11	$	—		$	85
Municipal bonds	154,543		1,783		(387		)	155,939
Mortgage-backed securities	143,882		1,821		(567		)	145,136
Total securities available for sale	$	298,499	$	3,615	$	(954	)	$	301,160

Schedule of number, fair value and gross unrealized holding losses of the Company's investment securities by investment category and length of time that the securities have been in a continuous loss position

	March 31, 2014
	Less than 12 months						12 months or Longer						Total
				Gross						Gross						Gross
				Unrealized						Unrealized						Unrealized
		Fair		Holding				Fair		Holding				Fair		Holding
	Number	Value		Losses			Number	Value		Losses			Number	Value		Losses
	(dollars in thousands)
Municipal bonds	74	$	36,765	$	(476	)	12	$	5,046	$	(110	)	86	$	41,811	$	(586	)
Mortgage-backed securities	32	93,299		(1,422		)	1	12,312		(746		)	33	105,611		(2,168		)
Total	106	$	130,064	$	(1,898	)	13	$	17,358	$	(856	)	119	$	147,422	$	(2,754	)

	December 31, 2013
	Less than 12 months						12 months or Longer						Total
				Gross						Gross						Gross
				Unrealized						Unrealized						Unrealized
		Fair		Holding				Fair		Holding				Fair		Holding
	Number	Value		Losses			Number	Value		Losses			Number	Value		Losses
	(dollars in thousands)
Municipal bonds	133	$	61,524	$	(1,850	)	—	$	—	$	—		133	$	61,524	$	(1,850	)
Mortgage-backed securities	45	140,704		(3,075		)	1	12,607		(913		)	46	153,311		(3,988		)
Total	178	$	202,228	$	(4,925	)	1	$	12,607	$	(913	)	179	$	214,835	$	(5,838	)

	March 31, 2013
	Less than 12 months						12 months or Longer						Total
				Gross						Gross						Gross
				Unrealized						Unrealized						Unrealized
		Fair		Holding				Fair		Holding				Fair		Holding
	Number	Value		Losses			Number	Value		Losses			Number	Value		Losses
	(dollars in thousands)
Municipal bonds	122	$	53,773	$	(387	)	—	$	—	$	—		122	$	53,773	$	(387	)
Mortgage-backed securities	3	20,258		(350		)	27	1,031		(217		)	30	21,289		(567		)
Total	125	$	74,031	$	(737	)	27	$	1,031	$	(217	)	152	$	75,062	$	(954	)

Schedule of amortized cost and estimated fair value of investment securities available for sale by contractual maturity

	One Year				More than One				More than Five Years				More than
	or Less				Year to Five Years				to Ten Years				Ten Years				Total
	Amortized		Fair		Amortized		Fair		Amortized		Fair		Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value		Cost		Value		Cost		Value		Cost		Value
	(dollars in thousands)
Investment securities available for sale:
Municipal bonds	$	—	$	—	$	11,749	$	11,729	$	37,712	$	37,570	$	27,601	$	28,025	$	77,062	$	77,324
Mortgage-backed securities	—		—		—		—		12,675		12,576		114,246		112,242		126,921		124,818
Total investment securities available for sale	—		—		11,749		11,729		50,387		50,146		141,847		140,267		203,983		202,142