Significant Accounting Policies (Estimated Useful Lives) (Details)	12 Months Ended
	Dec. 29, 2012
Minimum [Member] | Leasehold Improvements [Member]
Property, plant and equipment, estimated useful life	3 years
Minimum [Member] | Machinery And Equipment [Member]
Property, plant and equipment, estimated useful life	2 years
Minimum [Member] | Furniture And Fixtures [Member]
Property, plant and equipment, estimated useful life	2 years
Minimum [Member] | Vehicles, Tooling And Desktop PCs [Member]
Property, plant and equipment, estimated useful life	2 years
Maximum [Member] | Leasehold Improvements [Member]
Property, plant and equipment, estimated useful life	15 years
Maximum [Member] | Machinery And Equipment [Member]
Property, plant and equipment, estimated useful life	10 years
Maximum [Member] | Furniture And Fixtures [Member]
Property, plant and equipment, estimated useful life	10 years
Maximum [Member] | Vehicles, Tooling And Desktop PCs [Member]
Property, plant and equipment, estimated useful life	5 years