Employee Benefit Plans

6 Months Ended

Sep. 30, 2012

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,
	2012		2011
	(Unaudited)
	(In thousands)
Service cost for benefits earned during the period	$	156	$	128
Interest cost on accumulated postretirement benefit		138		142
Other components		1		(4	)
Net periodic postretirement benefit cost	$	295	$	266

	Six Months Ended September 30,
	2012		2011
	(Unaudited)
	(In thousands)
Service cost for benefits earned during the period	$	311	$	257
Interest cost on accumulated postretirement benefit		277		284
Other components		2		(8	)
Net periodic postretirement benefit cost	$	590	$	533