Other Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 29, 2014	Sep. 28, 2013	Mar. 29, 2014	Mar. 30, 2013	Mar. 31, 2012
Disclosure Other Assets [Abstract]
Minority equity investment	$ 4,263		$ 4,263	$ 8,966
Consignment and demo equipment, net	5,938		5,938	4,263
Other	2,146		2,146	1,523
Other assets	12,347		12,347	14,752
Schedule of Cost-method Investments [Line Items]
Cost-method Investments, Description [Text Block]			5000000
Minority equity investment	4,263		4,263	8,966
Other than temporary impairment of cost based investments	(6,115)	(3,588)	9,703	0	0
Omni Guide, Inc.
Schedule of Cost-method Investments [Line Items]
Percentage Of Ownership Interests	15.00%		15.00%
Class D Preferred Stock | Omni Guide, Inc.
Disclosure Other Assets [Abstract]
Minority equity investment				6,000
Schedule of Cost-method Investments [Line Items]
Minority equity investment				6,000
Class E Preferred Stock | Omni Guide, Inc.
Disclosure Other Assets [Abstract]
Minority equity investment				3,000
Schedule of Cost-method Investments [Line Items]
Minority equity investment				$ 3,000