Income Taxes - Schedule of Unrecognized Tax Benefit Liability (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits, Beginning Balance	$ 229	$ 19	$ 37
Additions for tax positions of prior years		218
Reductions for tax positions of prior years	(8)	(8)	(18)
Unrecognized Tax Benefits, Ending Balance	$ 221	$ 229	$ 19