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Acquisition, Goodwill Impairment and Long-lived Asset Impairment (Tables) | 12 Months Ended
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Dec. 28, 2013
Acquisitions and Goodwill and Long Lived Asset Impairment [Abstract] |
Purchase price allocation | Recognized amounts of identifiable assets acquired and liabilities assumed (in thousands):
|  | Amount
| Cash and equivalents |  | $ | 1,239 |
| Account receivables |  | 724 |
| Inventories |  | 1,440 |
| Property, plant and equipment – machinery and equipment |  | 616 |
| Other assets |  | 227 |
| Developed technology (included in intangibles) |  | 9,042 |
| Customer relationships (included in intangibles) |  | 1,040 |
| In-process research and development (included in intangibles) |  | 308 |
| Liabilities |  | (1,603 | )
| Total identifiable net assets |  | 13,033 |
| Goodwill |  | 11,610 |
| Total purchase consideration |  | $ | 24,643 |
Identifiable intangible assets acquired | The following table summarizes the identifiable intangible assets acquired as part of the acquisition, and adjustments to carrying value include foreign currency translation adjustments and adjustments to preliminary purchase price allocation during the fiscal years 2013, 2012 and 2011 (in thousands):
| Net carrying value as of December 29, 2012 |  | Adjustments to carrying value during 2013 |  | Amortization expense during 2013 |  | Net carrying amount as of December 28, 2013
Developed technology | $ | 7,130 |  |  | $ | 315 |  |  | $ | (1,961 | ) |  | $ | 5,484 |
Customer relationships | 639 |  |  | 35 |  |  | (364 | ) |  | 310 |
In-process research and development | — |  |  | — |  |  | — |  |  | — |
Total identifiable intangible assets acquired | $ | 7,769 |  |  | $ | 350 |  |  | $ | (2,325 | ) |  | $ | 5,794 |
| Net carrying value as of December 31, 2011 |  | Adjustments to carrying value during 2012 |  | Amortization expense during 2012 |  | Net carrying amount as of December 29, 2012
Developed technology | $ | 8,603 |  |  | $ | 279 |  |  | $ | (1,752 | ) |  | $ | 7,130 |
Customer relationships | 957 |  |  | 12 |  |  | (330 | ) |  | 639 |
In-process research and development | 316 |  |  | (316 | ) |  | — |  |  | — |
Total identifiable intangible assets acquired | $ | 9,876 |  |  | $ | (25 | ) |  | $ | (2,082 | ) |  | $ | 7,769 |
| Fair Value as of acquisition date, November 21, 2011 |  | Adjustments to carrying value during 2011 |  | Amortization expense during 2011 |  | Net carrying amount as of December 31, 2011
Developed technology | $ | 9,200 |  |  | $ | (393 | ) |  | $ | (204 | ) |  | $ | 8,603 |
Customer relationships | 1,040 |  |  | (45 | ) |  | (38 | ) |  | 957 |
In-process research and development | 330 |  |  | (14 | ) |  | — |  |  | 316 |
Total identifiable intangible assets acquired | $ | 10,570 |  |  | $ | (452 | ) |  | $ | (242 | ) |  | $ | 9,876 |
Pro forma financial information | The unaudited pro forma financial information combines the historical results of Nanometrics for fiscal year 2011, the historical results of Nanda for the twelve months ended December 31, 2011, and the effects of the pro forma adjustments described above.
|  | Fiscal Year Ended |
(In thousands, except per share amounts) |  | December 31, 2011 |
Total revenues |  | $ | 232,418 |  |
Net income |  | 24,939 |  |
Net income per share: |  |  |
Basic |  | 1.10 |  |
Diluted |  | 1.06 |  |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + 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 + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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