Risks and Uncertainties (Details)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Risks and uncertainties
Interest rate on unsettled balances due upon demand (as a percent)	0.00%
Accounts receivable | Customers | Edom Technology
Risks and uncertainties
Concentrations of credit risk (as a percent)	26.00%	23.00%
Accounts receivable | Customers | Arrow Electronics
Risks and uncertainties
Concentrations of credit risk (as a percent)	10.00%
Accounts receivable | Customers | Arrow Electronics | High end of range
Risks and uncertainties
Concentrations of credit risk (as a percent)		10.00%
Accounts receivable | Customers | Avnet
Risks and uncertainties
Concentrations of credit risk (as a percent)		12.00%
Accounts receivable | Customers | Avnet | High end of range
Risks and uncertainties
Concentrations of credit risk (as a percent)	10.00%
Revenue | Edom Technology
Risks and uncertainties
Concentrations of credit risk (as a percent)	21.00%	22.00%	24.00%
Revenue | Avnet
Risks and uncertainties
Concentrations of credit risk (as a percent)	11.00%	11.00%	12.00%
Revenue | Macnica
Risks and uncertainties
Concentrations of credit risk (as a percent)			10.00%
Revenue | Macnica | High end of range
Risks and uncertainties
Concentrations of credit risk (as a percent)	10.00%	10.00%
Revenue | Customers | Samsung
Risks and uncertainties
Concentrations of credit risk (as a percent)	15.00%	19.00%	13.00%