Income Taxes (Unrecognized tax benefits) (Detail) $ in Thousands	12 Months Ended
	Jun. 30, 2016 USD ($)
Income Tax Benefit Expenses [Line Items]
Beginning balance of gross unrecognized tax benefits, Tax	$ 102
Increases to unrecognized tax benefits resulting from the generation of additional R&D credits, Tax	46
Ending balance of gross unrecognized tax benefits, Tax	148
Beginning balance of gross unrecognized tax benefits, Interest	0
Increases to unrecognized tax benefits resulting from the generation of additional R&D credits, Interest	0
Ending balance of gross unrecognized tax benefits, Interest	0
Beginning balance of gross unrecognized tax benefits	102
Increases to unrecognized tax benefits resulting from the generation of additional R&D credits	46
Ending balance of gross unrecognized tax benefits	$ 148