Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 27, 2020	Jun. 29, 2019
Reinsurance Effect on Premiums Written and Earned
Direct premiums Written	$ 5,765	$ 5,033
Assumed premiums - nonaffiliate Written	7,653	7,513
Ceded premiums - nonaffiliate Written	(3,202)	(2,987)
Net premiums Written	10,216	9,559
Direct premiums Earned	5,185	4,570
Assumed premiums - nonaffiliate Earned	6,790	6,435
Ceded premiums - nonaffiliate Earned	(3,202)	(2,987)
Premiums Earned, Net	$ 8,773	$ 8,018