GEOGRAPHIC INFORMATION, PRODUCT GROUPS AND CUSTOMER CONCENTRATION INFORMATION - Revenues by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 26, 2016	Mar. 28, 2015	Mar. 26, 2016	Mar. 28, 2015
Geographic Information [Line Items]
Revenues	$ 101,050	$ 83,023	$ 282,729	$ 259,084
China
Geographic Information [Line Items]
Revenues	43,935	29,433	112,170	75,686
United States
Geographic Information [Line Items]
Revenues	15,913	12,429	45,880	40,352
Mexico
Geographic Information [Line Items]
Revenues	10,015	8,139	36,549	31,029
Malaysia
Geographic Information [Line Items]
Revenues	7,986	10,845	24,146	40,306
Italy
Geographic Information [Line Items]
Revenues	6,353	6,429	20,242	17,332
Germany
Geographic Information [Line Items]
Revenues	5,686	5,781	14,638	20,168
Japan
Geographic Information [Line Items]
Revenues	2,167	2,189	5,133	7,637
Rest of world
Geographic Information [Line Items]
Revenues	$ 8,995	$ 7,778	$ 23,971	$ 26,574