Employee Benefit Plans

3 Months Ended

Sep. 30, 2011

Compensation and Retirement Disclosure [Abstract]

13. Employee Benefit Plans

13. Employee Benefit Plans

The components of the net periodic benefit costs with respect to postretirement benefits were as follows:

	Quarter Ended September 30,
	2011			2010
	(Unaudited)
	(In thousands)
Service cost for benefits earned during the period	$	128		$	115
Interest cost on accumulated postretirement benefit		142			142
Other components		(4	)		(10	)
Net periodic postretirement benefit cost	$	266		$	247

	Six Months Ended September 30,
	2011			2010
	(Unaudited)
	(In thousands)
Service cost for benefits earned during the period	$	257		$	230
Interest cost on accumulated postretirement benefit		284			284
Other components		(8	)		(19	)
Net periodic postretirement benefit cost	$	533		$	495