BALANCE SHEET DETAILS - Additional Information (Details) ¥ in Millions	3 Months Ended
	Sep. 26, 2015 USD ($)	Sep. 27, 2014 USD ($)	Sep. 26, 2015 CNY (¥)	Jun. 27, 2015 USD ($)	Mar. 26, 2014 USD ($)	Mar. 26, 2014 CNY (¥)
Balance Sheet Components [Line Items]
Restricted cash and cash equivalents	$ 2,800,000
Assets under capital lease	4,400,000			$ 4,700,000
Expected amortization of intangible assets in fiscal year 2016	1,000,000
Expected amortization of intangible assets in fiscal year 2017	800,000
Expected amortization of intangible assets in fiscal year 2018	600,000
Expected amortization of intangible assets in fiscal year 2019	100,000
Restructuring charges	259,000
Payment for restructuring liabilities	579,000
Accrued restructuring liabilities	392,000			712,000
Shenzhen
Balance Sheet Components [Line Items]
Payment for restructuring liabilities		$ 1,300,000
Accrued restructuring liabilities	0			$ 0
Workforce Reduction
Balance Sheet Components [Line Items]
Restructuring charges		200,000
Lease Cancellations and Commitments
Balance Sheet Components [Line Items]
Restructuring charges		600,000
Employee Separation Charges | Shenzhen
Balance Sheet Components [Line Items]
Restructuring charges		900,000
Restructuring
Balance Sheet Components [Line Items]
Restructuring charges	300,000	800,000
Payment for restructuring liabilities	400,000	$ 1,400,000
Accrued restructuring liabilities	400,000
China | Xi'an Raysung Photonics Inc.
Balance Sheet Components [Line Items]
Cash held in foreign bank	900,000		¥ 5.4		$ 2,500,000	¥ 15.0
Other non-current assets
Balance Sheet Components [Line Items]
Restricted cash and cash equivalents noncurrent	$ 200,000