Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 29, 2018	Dec. 30, 2017
Reinsurance Effect on Premiums Written and Earned
Direct premiums Written	$ 4,190	$ 3,796	$ 12,551	$ 11,790
Assumed premiums - nonaffiliate Written	5,860	5,428	19,074	17,898
Ceded premiums - nonaffiliate Written	(3,475)	(2,816)	(9,457)	(10,073)
Net premiums Written	6,575	6,408	22,168	19,615
Direct premiums Earned	4,304	4,120	12,764	12,407
Assumed premiums - nonaffiliate Earned	6,385	6,296	18,969	18,889
Ceded premiums - nonaffiliate Earned	(3,475)	(2,816)	(9,457)	(10,073)
Net premiums Earned	$ 7,214	$ 7,600	$ 22,276	$ 21,223