Reinsurance and Insurance Loss Reserves (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020
Reinsurance Effect on Premiums Written and Earned
Direct premiums Written	$ 6,310	$ 4,915	$ 13,149	$ 10,680
Assumed premiums - nonaffiliate Written	8,240	7,593	16,814	15,246
Ceded premiums - nonaffiliate Written	(3,714)	(2,853)	(7,361)	(6,055)
Net premiums Written	10,836	9,655	22,602	19,871
Direct premiums Earned	6,323	5,145	12,319	10,330
Assumed premiums - nonaffiliate Earned	7,630	7,043	15,008	13,833
Ceded premiums - nonaffiliate Earned	(3,714)	(2,853)	(7,361)	(6,055)
Premiums Earned, Net	$ 10,239	$ 9,335	$ 19,966	$ 18,108