Income Taxes - Additional Information (Detail) $ in Thousands	12 Months Ended
	Jun. 30, 2016 USD ($)
Tax Credit Carryforward [Line Items]
Accrued deferred taxes, undistributed earnings and profits	$ 724
Domestic Tax Authority | Research and development credit carryforwards
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 959
Domestic Tax Authority | Research and development credit carryforwards | Minimum
Tax Credit Carryforward [Line Items]
Tax carryforward expiration year	2032
Domestic Tax Authority | Research and development credit carryforwards | Maximum
Tax Credit Carryforward [Line Items]
Tax carryforward expiration year	2033
State and Local Jurisdiction | Research and development credit carryforwards
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 14,798
State and Local Jurisdiction | Research and development credit carryforwards | Minimum
Tax Credit Carryforward [Line Items]
Tax carryforward expiration year	2016
State and Local Jurisdiction | Research and development credit carryforwards | Maximum
Tax Credit Carryforward [Line Items]
Tax carryforward expiration year	2029
State and Local Jurisdiction | Investment Tax Credit Carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 113