Property and Equipment, Net - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 1,983	$ 2,144
Accumulated depreciation and amortization	(1,693)	(1,806)
Property and equipment, net	290	338
Property and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	1,777	1,927
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 206	$ 217