Reinsurance (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Reinsurance Effect on Premiums Written and Earned
Direct premiums Written	$ 3,188	$ 2,833	$ 6,764	$ 5,741
Assumed premiums - nonaffiliate Written	4,951	4,368	10,250	8,313
Ceded premiums - nonaffiliate Written	(2,448)	(1,838)	(4,757)	(3,459)
Net premiums Written	5,691	5,363	12,257	10,595
Direct premiums Earned	3,190	2,421	6,264	4,530
Assumed premiums - nonaffiliate Earned	4,641	3,739	9,012	7,216
Ceded premiums - nonaffiliate Earned	(2,448)	(1,838)	(4,757)	(3,459)
Net premiums Earned	$ 5,383	$ 4,322	$ 10,519	$ 8,287