GEOGRAPHIC INFORMATION, PRODUCT GROUPS, MARKET APPLICATIONS AND CUSTOMER CONCENTRATION INFORMATION - Revenues by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Geographic Information [Line Items]
Revenues	$ 131,658	$ 155,598
Asia-Pacific:
Geographic Information [Line Items]
Revenues	79,932	65,297
China
Geographic Information [Line Items]
Revenues	50,804	41,433
Thailand
Geographic Information [Line Items]
Revenues	19,384	18,075
Malaysia
Geographic Information [Line Items]
Revenues	4,124	2,087
Other Asia-Pacific
Geographic Information [Line Items]
Revenues	5,620	3,702
Americas:
Geographic Information [Line Items]
Revenues	40,783	72,407
United States
Geographic Information [Line Items]
Revenues	14,720	37,690
Mexico
Geographic Information [Line Items]
Revenues	25,732	29,486
Other Americas
Geographic Information [Line Items]
Revenues	331	5,231
EMEA:
Geographic Information [Line Items]
Revenues	9,930	15,796
Italy
Geographic Information [Line Items]
Revenues	5,704	6,925
Germany
Geographic Information [Line Items]
Revenues	2,852	4,055
Other EMEA
Geographic Information [Line Items]
Revenues	1,374	4,816
Japan
Geographic Information [Line Items]
Revenues	$ 1,013	$ 2,098