Income Taxes - Components of Net Deferred Tax Assets (Liabilities) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Deferred tax assets:
Inventory valuation and receivable allowances	$ 8,830	$ 8,805
Accrued compensation	972	944
Equity compensation	4,831	6,185
Federal and state research and development tax credit carryforwards	11,167	10,296
Other accruals	1,043	1,087
Other temporary differences	4,012	1,262
Deferred tax Asset	32,087	30,255
Valuation allowance	(10,844)	(9,032)
Total deferred tax assets	21,243	21,223
Deferred tax liabilities:
Deferred revenue	0	(1,745)
Property and equipment depreciation	(1,694)	(3,144)
Acquired intangible assets	(9,242)	(11,371)
Other temporary differences	(624)	0
Total deferred tax liabilities	(11,560)	(16,260)
Net deferred tax (liabilities) assets	9,683	4,963
Current deferred tax assets	15,216	11,534
Non-current deferred tax assets	378	81
Non-current deferred tax assets	(5,911)	(6,652)
Other Amortizable Assets
Deferred tax assets:
Gain on sale-leaseback	$ 1,232	$ 1,676