INVESTMENT SECURITIES (Tables)

3 Months Ended

Mar. 31, 2013

Investments Debt And Equity Securities [Abstract]

Amortized Cost and Estimated Fair Value of Investment Securities Available for Sale

The amortized cost and estimated fair value of investment securities available for sale at March 31, 2013, December 31, 2012 and March 31, 2012 are presented below:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(Dollars in Thousands)
March 31, 2013:
U. S. government agencies	$	5,000	$	15	$	—		$	5,015
State, county and municipal securities		110,628		5,051		(147	)		115,532
Corporate debt securities		10,542		355		(600	)		10,297
Mortgage-backed securities		188,492		5,342		(649	)		193,185
Total debt securities	$	314,662	$	10,763	$	(1,396	)	$	324,029
December 31, 2012:
U. S. government agencies	$	6,605	$	271	$	(6	)	$	6,870
State, county and municipal securities		109,736		4,864		(210	)		114,390
Corporate debt securities		10,545		330		(547	)		10,328
Mortgage-backed securities		209,824		5,701		(204	)		215,321
Total debt securities	$	336,710	$	11,166	$	(967	)	$	346,909
March 31, 2012:
U. S. government agencies	$	28,634	$	258	$	(44	)	$	28,848
State, county and municipal securities		78,440		3,723		(166	)		81,997
Corporate debt securities		11,639		217		(471	)		11,385
Mortgage-backed securities		244,232		5,573		(244	)		249,561
Total debt securities	$	362,945	$	9,771	$	(925	)	$	371,791

Amortized Cost and Fair Value of Available-for-sale Securities by Contractual Maturity

The amortized cost and fair value of available-for-sale securities at March 31, 2013 by contractual maturity are summarized in the table below. Expected maturities for mortgage-backed securities may differ from contractual maturities because in certain cases borrowers can prepay obligations without prepayment penalties. Therefore, these securities are not included in the following maturity summary.

	Amortized Cost		Fair Value
	(Dollars in Thousands)
Due in one year or less	$	3,027	$	3,041
Due from one year to five years		29,250		30,645
Due from five to ten years		58,652		61,448
Due after ten years		35,241		35,710
Mortgage-backed securities		188,492		193,185
	$	314,662	$	324,029

Schedule of Gross Unrealized Losses and Fair Value of Securities

The following table details the gross unrealized losses and fair value of securities aggregated by category and duration of continuous unrealized loss position at March 31, 2013, December 31, 2012 and March 31, 2012.

	Less Than 12 Months					12 Months or More					Total
Description of Securities	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
	(Dollars in Thousands)
March 31, 2013:
U. S. government agencies	$	—	$	—		$	—	$	—		$	—	$	—
State, county and municipal securities		19,159		(138	)		505		(9	)		19,664		(147	)
Corporate debt securities		244		(6	)		4,506		(594	)		4,750		(600	)
Mortgage-backed securities		55,189		(648	)		1,120		(1	)		56,309		(649	)
Total debt securities	$	74,592	$	(792	)	$	6,131	$	(604	)	$	80,723	$	(1,396	)
December 31, 2012:
U. S. government agencies	$	4,994	$	(6	)	$	—	$	—		$	4,994	$	(6	)
State, county and municipal securities		15,595		(199	)		505		(11	)		16,100		(210	)
Corporate debt securities		—		—			4,560		(547	)		4,560		(547	)
Mortgage-backed securities		23,951		(181	)		3,617		(23	)		27,568		(204	)
Total debt securities	$	44,540	$	(386	)	$	8,682	$	(581	)	$	53,222	$	(967	)
March 31, 2012:
U. S. government agencies	$	8,960	$	(44	)	$	—	$	—		$	8,960	$	(44	)
State, county and municipal securities		8,960		(166	)		—		—			8,960		(166	)
Corporate debt securities		100		—			6,611		(471	)		6,711		(471	)
Mortgage-backed securities		37,860		(234	)		2,292		(10	)		40,152		(244	)
Total debt securities	$	55,880	$	(444	)	$	8,903	$	(481	)	$	64,783	$	(925	)