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Intangible Assets - Components of Intangible Assets (Detail) - USD ($) $ in Thousands | Dec. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Cost |  |
Total cost | $ 51,798 | $ 50,689
Accumulated amortization |  |
Accumulated amortization | (24,675) | (21,313)
Total | 27,123 | 29,376
Patents |  |
Cost |  |
Total cost | 20,623 | 19,950
Accumulated amortization |  |
Accumulated amortization | (8,473) | (7,427)
Customer relationships |  |
Cost |  |
Total cost | 7,669 | 7,669
Accumulated amortization |  |
Accumulated amortization | (4,154) | (3,387)
Licenses |  |
Cost |  |
Total cost | 7,500 | 7,500
Accumulated amortization |  |
Accumulated amortization | (4,831) | (4,245)
Acquired technology |  |
Cost |  |
Total cost | 5,580 | 5,580
Accumulated amortization |  |
Accumulated amortization | (3,066) | (2,508)
Trademarks |  |
Cost |  |
Total cost | 4,036 | 3,777
Accumulated amortization |  |
Accumulated amortization | (1,611) | (1,331)
Capitalized software development costs |  |
Cost |  |
Total cost | 2,699 | 2,539
Accumulated amortization |  |
Accumulated amortization | (1,864) | (1,766)
Other |  |
Cost |  |
Total cost | 3,691 | 3,674
Accumulated amortization |  |
Accumulated amortization | $ (676) | $ (649)

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