Geographic and Significant Customer Information (Details 2)	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Intel Corporation [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable	34.30%	15.30%	29.80%	20.10%
Sk Hynix [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable	23.30%	24.10%	17.50%	18.90%
Samsung Electronics Co. Ltd. [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable	0.00%	17.40%	9.40%	31.60%
Taiwan Semiconductor Mfg. Co. [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable	0.00%	12.80%	0.00%	0.00%
Accounts Receivable [Member] | Intel Corporation [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable			10.00%	12.30%
Accounts Receivable [Member] | Sk Hynix [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable			46.00%	0.00%
Accounts Receivable [Member] | Samsung Electronics Co. Ltd. [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable			0.00%	0.00%
Accounts Receivable [Member] | Micron Technology, Inc. [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable			0.00%	0.00%
Accounts Receivable [Member] | Taiwan Semiconductor Mfg. Co. [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable			0.00%	17.30%