Income Taxes - Components of Net Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Deferred tax assets:
Inventory valuation and receivable allowances	$ 10,313	$ 8,476
Accrued compensation	4,644	3,803
Equity compensation	4,595	3,944
Federal and state research and development tax credit carryforwards	15,510	18,784
Other accruals	1,128	1,085
Accrued compensation	1,561	1,561
Operating Loss Carryforwards	721	1,634
Capital loss carryforwards	2,354	2,413
Other temporary differences	2,258	1,565
Deferred tax Asset	43,084	43,265
Valuation allowance	(16,666)	(16,992)
Total deferred tax assets	26,418	26,273
Deferred tax liabilities:
Deferred revenue	(848)	(696)
Property and equipment depreciation	(4,927)	(4,436)
Acquired intangible assets	(38,399)	(34,546)
Other temporary differences	(58)	(230)
Total deferred tax liabilities	44,232	39,908
Net deferred tax (liabilities) assets	(17,814)	(13,635)
Non-current deferred tax assets	$ (17,814)	$ (13,635)