Geographic and Significant Customer Information (Details 2) (Accounts Receivable [Member])	6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
SK Hynix [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total accounts receivable	24.00%	22.00%
Taiwan Semiconductor Mfg. Co. [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total accounts receivable	17.00%	12.00%
Global Foundries [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total accounts receivable	17.00%
Samsung Electronics Co. Ltd. [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total accounts receivable		27.00%
Intel Corporation [Member]
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more of total accounts receivable		14.00%