11. Property and Equipment (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Dec. 30, 2017 |
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| Property plant and equipment, gross | $ 6,107 | $ 6,093 |
| Less accumulated depreciation and amortization | (5,616) | (5,555) |
| Property plant and equipment, net | 491 | 538 |
| Buildings and improvements [Member] | ||
| Property plant and equipment, gross | $ 156 | 156 |
| Estimated useful life | 18-30 years | |
| Equipment (including computer software | ||
| Property plant and equipment, gross | $ 5,922 | 5,908 |
| Estimated useful life | 3-15 years | |
| Land [Member] | ||
| Property plant and equipment, gross | $ 0 | 0 |
| Projects under construction [Member] | ||
| Property plant and equipment, gross | $ 29 | $ 29 |
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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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