Investment Securities (Tables)

6 Months Ended

Jun. 30, 2012

Investment Securities [Abstract]

Amortized cost and estimated fair values of investments in debt and equity securities

	June 30, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Securities Available-for-Sale			(In thousands)
Obligations of U.S. government corporations and agencies	$	181,374	$	9,639		—		$	191,013
Obligations of states and political subdivisions		9,562		391		—			9,953
Corporate debt securities		1,855		28		—			1,883
Total securities available-for-sale	$	192,791	$	10,058		—		$	202,849
	December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Securities Available-for-Sale			(In thousands)
Obligations of U.S. government corporations and agencies	$	207,284	$	10,100		—		$	217,384
Obligations of states and political subdivisions		9,561		467		—			10,028
Corporate debt securities		1,848		—	$	(37	)		1,811
Total securities available-for-sale	$	218,693	$	10,567	$	(37	)	$	229,223

Amortized cost and estimated fair value of debt securities by contractual maturity

	Amortized Cost		Estimated Fair Value
Investment Securities	(In thousands)
Due in one year	$	3,003	$	3,122
Due after one year through five years		10,444		11,016
Due after five years through ten years		57,159		59,161
Due after ten years		122,185		129,550
Totals	$	192,791	$	202,849

Gross unrealized losses on investment

	Less than 12 months					12 months or more				Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
	(In thousands)
June 30, 2012:
Securities Available-for-Sale:
Obligations of U.S. government corporations and agencies		—		—			—		—		—		—
Obligations of states and political subdivisions		—		—			—		—		—		—
Corporate debt securities		—		—			—		—		—		—
Total securities available-for-sale		—		—			—		—		—		—
	Less than 12 months					12 months or more				Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
	(In thousands)
December 31, 2011
Securities Available-for-Sale:
Obligations of U.S. government corporations and agencies	$	10		—			—		—	$	10		—
Obligations of states and political subdivisions		—		—			—		—		—		—
Corporate debt securities		1,811	$	(37	)		—		—		1,811	$	(37	)
Total securities available-for-sale	$	1,821	$	(37	)		—		—	$	1,821	$	(37	)