Components of Income Before Income Taxes and Income Tax Expense (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Income from continuing operations before income taxes:
United States	$ 31,277	$ 26,072	$ 18,714
Foreign	494	495	(22)
Income from continuing operations before income taxes (benefit)	31,771	26,567	18,692
Federal:
Current	10,591	4,974	(356)
Deferred	(2,582)	1,992	(8,286)
Federal Income Tax Expense (Benefit), Continuing Operations, Total	8,009	6,966	(8,642)
State:
Current	1,401	855	98
Deferred	(335)	48	(711)
State and Local Income Tax Expense (Benefit), Continuing Operations, Total	1,066	903	(613)
Foreign:
Current	77	161	(122)
Deferred		30
Foreign, Income Tax expense benefit	77	191	(122)
Income tax expense	$ 9,152	$ 8,060	$ (9,377)