Restructuring (table) (detail) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Balance	$ 1,249,000	$ 10,000	$ 10,000
Plant Restructuring	(81,000)	0
Cash payments/write offs	(694,000)	(3,000)
Balance	474,000	7,000	1,249,000
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Balance	715,000	10,000	10,000
Plant Restructuring	(81,000)
Cash payments/write offs	(597,000)	(3,000)
Balance	37,000	7,000	715,000
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Balance	270,000	0	0
Cash payments/write offs	(97,000)
Balance	173,000		270,000
Long Lived Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance	264,000	$ 0	0
Balance	$ 264,000		$ 264,000