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Intangible Assets Intangible Assets | 6 Months Ended
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Jul. 04, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets | Intangible Assets Intangible assets, net, consist of the following (in thousands):
| July 4, 2015 |  | January 3, 2015
Patents | $ | 21,081 |  |  | $ | 20,459 |
Customer relationships | 7,669 |  |  | 7,669 |
Acquired technology | 5,580 |  |  | 5,580 |
Trademarks | 3,772 |  |  | 3,562 |
Capitalized software development costs | 2,332 |  |  | 2,066 |
Other | 2,527 |  |  | 1,450 |
Total cost | 42,961 |  |  | 40,786 |
Accumulated amortization | (14,925 | ) |  | (13,015 | )
Intangible assets, net | $ | 28,036 |  |  | $ | 27,771 |
Total amortization expense for the six months ended July 4, 2015 and June 28, 2014 was $2.4 million and $1.7 million, respectively. All of these intangible assets have a 10 year weighted average amortization period. Estimated amortization expense for future fiscal years is as follows (in thousands):
Fiscal year | Amount
2015 (balance of year) | $ | 3,486 |
2016 | 3,181 |
2017 | 3,051 |
2018 | 2,558 |
2019 | 2,351 |
Thereafter | 13,409 |
Total | $ | 28,036 |

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- Definition The entire disclosure for all or part of the information related to 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 1 -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 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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