COMMITMENTS AND CONTINGENCIES - Additional Information (Details) ¥ in Millions, $ in Millions														6 Months Ended	12 Months Ended
	Aug. 21, 2015 USD ($)	Aug. 21, 2015 CNY (¥)	Apr. 10, 2015 USD ($)	Apr. 10, 2015 CNY (¥)	Apr. 02, 2015 USD ($)	Apr. 02, 2015 CNY (¥)	Oct. 22, 2014 USD ($)	Oct. 22, 2014 CNY (¥)	Sep. 22, 2014 USD ($)	Sep. 22, 2014 CNY (¥)	Nov. 11, 2013 USD ($)	Oct. 23, 2013 USD ($)	Oct. 23, 2013 CNY (¥)	Dec. 26, 2015 USD ($)	Jun. 27, 2015 USD ($)	Mar. 26, 2014 USD ($)	Mar. 26, 2014 CNY (¥)
Contingencies And Commitments [Line Items]
Damages complaint sought							$ 1.2	¥ 7.4	$ 5.9	¥ 36.2		$ 0.8	¥ 4.8
Litigation settlement											$ 0.5
Xi'an Raysung Photonics Inc.
Contingencies And Commitments [Line Items]
Litigation settlement	$ 2.5	¥ 15.0	$ 1.9	¥ 11.4
Cash released in exchange of new lien on physical assets					$ 0.8	¥ 5.0
Xi'an Raysung Photonics Inc. | Selling, General and Administrative Expense
Contingencies And Commitments [Line Items]
Litigation settlement															$ 2.5
China | Xi'an Raysung Photonics Inc.
Contingencies And Commitments [Line Items]
Cash held in foreign bank																$ 2.5	¥ 15.0
Damages from Product Defects
Contingencies And Commitments [Line Items]
Damages complaint sought												$ 2.2	¥ 13.5
Accrued Expenses and Other Liabilities | Xi'an Raysung Photonics Inc.
Contingencies And Commitments [Line Items]
Accrued expenses and other liabilities															2.5
Inventory in Excess of Future Demand Forecasts | Accrued Expenses and Other Liabilities
Contingencies And Commitments [Line Items]
Purchase commitments														$ 2.6	$ 3.2
Minimum
Contingencies And Commitments [Line Items]
Warranty for products from date of sale														12 months
Capital lease term														1 year
Maximum
Contingencies And Commitments [Line Items]
Warranty for products from date of sale														36 months
Capital lease term														5 years