Note E - Marketable Securities (Details) - Bond Maturities by Period (USD $) In Thousands, unless otherwise specified	Sep. 28, 2014	Mar. 30, 2014
Bond Maturities by Period [Abstract]
September 28, 2014	$ 7,105	$ 11,187
September 28, 2014	3,934
September 28, 2014	3,171
September 28, 2014	0
September 28, 2014	$ 0