Property and Equipment - Schedule of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Jun. 30, 2013
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 14,412	$ 14,409
Less accumulated depreciation	(13,083)	(12,884)
Net property and equipment	1,329	1,525
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,299	5,213
Computer equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,456	5,451
Software development costs [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,688	2,688
Office furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 969	$ 1,057