Effective Tax Reconciliation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013
Income Tax Disclosure [Abstract]
Income tax expense at federal statutory rate	$ 2,469	$ 13,462	$ 6
Decrease (increase) in income tax expense resulting from:
State tax, net of federal benefit	(41)	(34)	(52)
Effect of lower tax rate on foreign income	81	(679)	163
Other permanent items	(604)	(494)	(135)
Research and development expenditure credits	1,600	150	539
Changes in uncertain tax positions	(143)	91	(787)
Other	59	(35)	60
Transaction expense	(680)
Goodwill impairment		(6,903)
Valuation allowance	(1,661)	(4,281)	(1,265)
Income tax (expense) benefit	$ (520)	$ 1,277	$ (1,471)