Property and Equipment, net (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Property, Plant and Equipment [Line Items]
Leasehold improvements	$ 2,710	$ 2,750
Machinery and equipment	14,461	15,000
Property, Plant and Equipment, Gross, Total	17,171	17,750
Less: Accumulated depreciation	(14,408)	(14,689)
Property, Plant and Equipment, Net, Total	$ 2,763	$ 3,061