Schedule of Fair Value of Contingent Consideration Rollforward (Table)

6 Months Ended

Sep. 24, 2016

Business Combination, Contingent Consideration, Liability [Abstract]

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

	Six Months Ended
	September 24,
	2016
	(in thousands)
Beginning balance	$	9,068
Adjustment to estimates (research and development expense)		(3,566)
Fair value charge recognized in earnings (research and development expense)		249
Ending balance	$	5,751