Schedule of Deferred Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jun. 27, 2015	Jun. 28, 2014
Deferred tax assets
Inventories	$ 418	$ 311
Accrued liabilities	1,057	880
Accounts receivable	52	35
Net operating loss carry-forwards	5,874	4,930
Stock based compensation	172	123
Foreign tax credit	45	40
Deferred rent	89	67
Research and development credits	1,581	1,731
Other	9	31
Valuation allowance	(7,239)	(5,574)
Deferred tax assets net of Valuation Allowance	2,058	2,574
Deferred tax liabilities
Property, plant and equipment	(979)	(901)
Intangible assets	(2,444)	(3,253)
Percentage of completion	(121)	(279)
Other	(27)	(28)
Gross deferred tax liabilities	(3,571)	(4,461)
Net deferred tax liability	$ (1,513)	$ (1,887)