Investments (Contractual Maturities) (Details) - USD ($) $ in Thousands	Jun. 29, 2019	Mar. 30, 2019
Amortized Cost
Due in less than one year	$ 860
Due after one year through five years	3,225
Due after five years through ten years	264
Due after ten years	1,926
Mortgage-backed securities	6,742
Amortized Cost	13,017	$ 13,443
Fair Value
Due in less than one year	858
Due after one year through five years	3,222
Due after five years through ten years	284
Due after ten years	2,033
Mortgage-backed securities	6,697
Fair Value	$ 13,094	$ 13,408