Investment Securities (Tables)

9 Months Ended

Sep. 30, 2013

Investment Securities

Schedule of amortized cost and estimated fair value of securities

	September 30, 2013
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
	(in thousands)
Investment securities available for sale:
U.S. Treasury	$	73	$	9	$	—		$	82
Municipal bonds	95,971		709		(1,795		)	94,885
Mortgage-backed securities	191,282		182		(3,585		)	187,879
Total securities available for sale	$	287,326	$	900	$	(5,380	)	$	282,846

	December 31, 2012
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
	(in thousands)
Investment securities available for sale:
U.S. Treasury	$	147	$	12	$	—		$	159
Municipal bonds	25,401		1,186		(1		)	26,586
Mortgage-backed securities	56,641		1,162		(482		)	57,321
Total securities available for sale	$	82,189	$	2,360	$	(483	)	$	84,066

	September 30, 2012
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
	(in thousands)
Investment securities available for sale:
U.S. Treasury	$	147	$	13	$	—		$	160
Municipal bonds	55,445		1,667		(15		)	57,097
Mortgage-backed securities	56,351		1,121		(479		)	56,993
Total securities available for sale	$	111,943	$	2,801	$	(494	)	$	114,250

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

	September 30, 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	131	$	60,183	$	(1,795	)	—	$	—	$	—		131	$	60,183	$	(1,795	)
Mortgage-backed securities	39	136,513		(2,725		)	1	13,117		(860		)	40	149,630		(3,585		)
Total	170	$	196,696	$	(4,520	)	1	$	13,117	$	(860	)	171	$	209,813	$	(5,380	)

	December 31, 2012
	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	1	$	292	$	(1	)	—	$	—	$	—		1	$	292	$	(1	)
Mortgage-backed securities	2	15,128		(152		)	31	1,012		(330		)	33	16,140		(482		)
Total	3	$	15,420	$	(153	)	31	$	1,012	$	(330	)	34	$	16,432	$	(483	)

	September 30, 2012
	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	9	$	2,775	$	(15	)	—	$	—	$	—		9	$	2,775	$	(15	)
Mortgage-backed securities	4	9,025		(33		)	34	1,004		(446		)	38	10,029		(479		)
Total	13	$	11,800	$	(48	)	34	$	1,004	$	(446	)	47	$	12,804	$	(494	)

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:
U.S. Treasury	$	—	$	—	$	73	$	82	$	—	$	—	$	—	$	—	$	73	$	82
Municipal bonds	—		—		9,995		9,905		42,734		42,392		43,242		42,588		95,971		94,885
Mortgage-backed securities	—		—		—		—		14,153		14,038		177,129		173,841		191,282		187,879
Total investment securities available for sale	—		—		10,068		9,987		56,887		56,430		220,371		216,429		287,326		282,846