Summary of Significant Accounting Policies (Details)	3 Months Ended												12 Months Ended
	Oct. 27, 2013	Jul. 28, 2013	Apr. 28, 2013	Jan. 27, 2013	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	May 01, 2011	Jan. 30, 2011	Oct. 27, 2013	Oct. 28, 2012	Oct. 30, 2011
Summary of Significant Accounting Policies (Textuals) [Abstract]
Operating cycle	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	364 days	364 days	364 days
Minimum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Useful life													1 year
Maximum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Useful life													15 years
Building and improvements [Member] | Minimum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life													3 years
Building and improvements [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life													30 years
Demonstration and manufacturing equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life													3 years
Demonstration and manufacturing equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life													5 years
Software [Member] | Minimum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life													3 years
Software [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life													5 years
Furniture, fixtures and other equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life													3 years
Furniture, fixtures and other equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life													15 years
Land improvements [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Term of amortization													15 years
Leasehold improvements [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Term of amortization													5 years