Defined Benefit Pension Plan's Funded Status and Amount Recognized in Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Change in Benefit Obligation
Benefit obligation at beginning of year	$ 1,652	$ 1,613
Interest cost	87	80
Actuarial (gain) loss	(83)	110
Benefits paid	(63)	(151)
Benefit obligation at end of year	1,593	1,652
Change in Plan Assets
Fair value of plan assets at beginning of year	1,716	1,649
Actual return on plan assets	31	218
Employer contributions
Benefits paid	(63)	(151)
Plan expenses	(2)
Fair value of plan assets at end of year	1,682	1,716
Reconciliation of Funded Status
Fair value of plan assets in excess of benefit obligation	89	64
Unrecognized net actuarial loss	542	572
Net amount recognized	631	636
Accrued benefit asset	$ 89	$ 64