Schedule of Sources of Differences Resulting in Deferred Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Significant Components Of Deferred Income Tax Expense [Line Items]
Depreciation and amortization	$ (3,581)	$ (2,825)	$ 38
Inventory capitalization	646	84	(1,947)
Net operating loss and credit carryforwards net of valuation allowances	533	4,786	1,859
Share-based compensation expense	(984)	(3,487)	(2,442)
Other	(1,049)	3,404	3,069
Nondeductible expense, total	$ (4,435)	$ 1,962	$ 577