Significant Customers and Concentrations of Credit Risk (Details) - Customer	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016	Apr. 01, 2017
Significant Customers and Concentrations of Credit Risk [Abstract]
Percentage of Accounts Receivable Accounted From Company Distributor One	67.00%		67.00%		59.00%
Percentage of net revenues through resale of product from Company Distributor One	44.00%	43.00%	42.00%	50.00%
Number of End Customers Accounted For 10% or More of Net Revenues	0	0	0	0
Percentage of higher grade securities investment in debt securities	84.00%		84.00%
Percentage of Mortgage Backed Securities In Investment Portfolio	33.00%		33.00%