Summary Of Significant Accounting Policies (Summary of Statements of Comprehensive Income (Loss) Restatement Adjustments) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Dec. 28, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	$ (2,559)	$ (129)	$ 10,953
Comprehensive loss	(13,027)	$ 554
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	(745)
Comprehensive loss	(11,213)
Restatement Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	(1,814)
Comprehensive loss	$ (1,814)