Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016
Property and equipment, gross	$ 7,762	$ 7,050
Accumulated depreciation and amortization	(6,735)	(5,856)
Property and equipment, net	1,027	1,194
Computer Equipment and Software [Member]
Property and equipment, gross	3,984	3,768
Shop Equipment [Member]
Property and equipment, gross	1,214	879
Furniture and Fixtures [Member]
Property and equipment, gross	290	286
Building and Leasehold Improvements [Member]
Property and equipment, gross	2,167	2,032
Autos and Trucks [Member]
Property and equipment, gross	$ 107	$ 85

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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