Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Reinsurance Effect on Premiums Written and Earned
Direct premiums Written	$ 5,033	$ 4,541
Assumed premiums - nonaffiliate Written	7,513	6,934
Ceded premiums - nonaffiliate Written	(2,987)	(2,847)
Net premiums Written	9,559	8,628
Direct premiums Earned	4,570	4,211
Assumed premiums - nonaffiliate Earned	6,435	6,234
Ceded premiums - nonaffiliate Earned	(2,987)	(2,847)
Premiums Earned, Net	$ 8,018	$ 7,598