GEOGRAPHIC INFORMATION (Details)	3 Months Ended		9 Months Ended
	Sep. 28, 2012 item	Sep. 30, 2011 item	Sep. 28, 2012 item	Sep. 30, 2011 item
Revenue by geographic area and by customer
Number of periods			1
Revenue
Revenue by geographic area and by customer
Number of periods	1	1	1	1
Revenue | Geographical area
Revenue by geographic area and by customer
Percentage of total revenue	100.00%	100.00%	100.00%	100.00%
Revenue | Geographical area | Less than
Revenue by geographic area and by customer
Threshold percentage	1.00%
Revenue | Geographical area | United States
Revenue by geographic area and by customer
Percentage of total revenue	76.00%	63.00%	75.00%	58.00%
Revenue | Geographical area | Japan
Revenue by geographic area and by customer
Percentage of total revenue		6.00%	9.00%	7.00%
Revenue | Geographical area | Other Asia Pacific
Revenue by geographic area and by customer
Percentage of total revenue	10.00%	3.00%	5.00%	1.00%
Revenue | Geographical area | Europe, Middle East and Africa
Revenue by geographic area and by customer
Percentage of total revenue	13.00%	26.00%	10.00%	13.00%
Revenue | Geographical area | Other
Revenue by geographic area and by customer
Percentage of total revenue	1.00%	2.00%	1.00%	21.00%
Revenue | Customer
Revenue by geographic area and by customer
Threshold percentage	10.00%	10.00%	10.00%	10.00%
Revenue | Customer | Less than
Revenue by geographic area and by customer
Percentage of total revenue			10.00%
Revenue | Customer | Bahamas Telecom
Revenue by geographic area and by customer
Percentage of total revenue				20.00%