Significant Customers and Concentrations of Credit Risk (Details)	3 Months Ended		6 Months Ended
	Sep. 28, 2013 Customer	Sep. 29, 2012 Customer	Sep. 28, 2013 Customer	Sep. 29, 2012 Customer	Mar. 30, 2013
Significant Customers and Concentrations of Credit Risk (Textual) [Abstract]
Percentage of total accounts receivable accounted from Avnet	64.00%		64.00%		64.00%
Percentage of net revenues through resale of product from Avnet	47.00%	44.00%	48.00%	45.00%
Number of end customers accounted for net revenues	0	1	0	0
Percentage of net revenues from end customer	10.00%	11.00%	10.00%	10.00%
Percentage of higher grade securities investment in debt securities			87.00%
Percentage of mortgage-backed securities in total investment portfolio	32.00%		32.00%