Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 26, 2020	Dec. 28, 2019
Reinsurance Effect on Premiums Written and Earned
Direct premiums Written	$ 5,420	$ 4,654	$ 16,100	$ 13,866
Assumed premiums - nonaffiliate Written	6,541	5,918	21,787	20,191
Ceded premiums - nonaffiliate Written	(3,146)	(3,071)	(9,201)	(9,087)
Net premiums Written	8,815	7,501	28,686	24,970
Direct premiums Earned	5,429	4,756	15,759	13,979
Assumed premiums - nonaffiliate Earned	7,195	6,676	21,028	19,703
Ceded premiums - nonaffiliate Earned	(3,146)	(3,071)	(9,201)	(9,087)
Premiums Earned, Net	$ 9,478	$ 8,361	$ 27,586	$ 24,595