Investments (Continuous Unrealized Loss Positions) (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Apr. 02, 2022
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 months, fair value	$ 6,498	$ 10,147
Unrealized losses, less than 12 months	(146)	(440)
12 months or longer, fair value	11,305	2,133
Unrealized losses, 12 months or longer	(634)	(111)
Debt securities in unrealized loss position, fair value	17,803	12,280
Debt securities in unrealized loss position, accumulated loss	780	551
Residential mortgage-backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 months, fair value	1,345	1,048
Unrealized losses, less than 12 months	(10)	(45)
12 months or longer, fair value	1,117	289
Unrealized losses, 12 months or longer	(69)	(12)
Debt securities in unrealized loss position, fair value	2,462	1,337
Debt securities in unrealized loss position, accumulated loss	79	57
States and political subdivision debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 months, fair value	251	3,884
Unrealized losses, less than 12 months	0	(164)
12 months or longer, fair value	4,792	1,246
Unrealized losses, 12 months or longer	(254)	(68)
Debt securities in unrealized loss position, fair value	5,043	5,130
Debt securities in unrealized loss position, accumulated loss	254	232
Corporate debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 months, fair value	4,902	5,215
Unrealized losses, less than 12 months	(136)	(231)
12 months or longer, fair value	5,396	598
Unrealized losses, 12 months or longer	(311)	(31)
Debt securities in unrealized loss position, fair value	10,298	5,813
Debt securities in unrealized loss position, accumulated loss	$ 447	$ 262