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Goodwill and Intangible Assets (Tables) | 6 Months Ended
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Jun. 28, 2014
Summary of Components of Gross and Net Intangible Asset | The following table summarizes the components of gross and net intangible asset balances:
| June 28, 2014 |  |  | December 28, 2013 |  |  |  |
(in thousands) | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Amortization Life |
Patents | $ | 720 |  |  | $ | 600 |  |  | $ | 120 |  |  | $ | 720 |  |  | $ | 572 |  |  | $ | 148 |  |  | Varies |
Customer relations |  | 240 |  |  |  | 68 |  |  |  | 172 |  |  | $ | 240 |  |  |  | 60 |  |  |  | 180 |  |  | 11.0 years |
| $ | 960 |  |  | $ | 668 |  |  | $ | 292 |  |  | $ | 960 |  |  | $ | 632 |  |  | $ | 328 |  |  |  |
Amortization of Sales and Marketing Expense and Cost of Revenue | The amortization of customer relations was charged to sales and marketing expense and the amortization of patents was charged to cost of revenues.
Future estimated amortization expense (in thousands): |  |  |
2014 (six months) | $ | 8 |
2015 |  | 30 |
2016 |  | 52 |
2017 |  | 86 |
2018 |  | 16 |
Thereafter |  | 100 |
Total | $ | 292 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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