Geographic and Significant Customer Information (Details 3) (Revenues [Member])	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Intel Corporation [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total revenue	18.00%	29.00%	16.00%	27.00%
SK Hynix [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total revenue	18.00%	23.00%	13.00%	15.00%
Samsung Electronics Co. Ltd. [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total revenue	16.00%	15.00%	35.00%	12.00%
Global Foundries [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total revenue	14.00%
Taiwan Semiconductor Mfg. Co. [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total revenue	11.00%