Segment and Geographic Information (Details) $ in Thousands	1 Months Ended	3 Months Ended
Apr. 30, 2016 USD ($)	Apr. 01, 2017 USD ($) segment	Apr. 02, 2016 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segments \| segment		1
Total revenue		$ 104,587	$ 96,512
Total revenue as percentage		100.00%	100.00%
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue		$ 73,458	$ 65,512
Total revenue as percentage		70.00%	68.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue		$ 11,080	$ 16,009
Total revenue as percentage		11.00%	17.00%
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue		$ 20,049	$ 14,991
Total revenue as percentage		19.00%	15.00%
Qterics
Revenues from External Customers and Long-Lived Assets [Line Items]
Proceeds from sale of business unit, net of cash sold	$ 2,000
Gain on sale of business unit	$ 2,600

Entity Wide Revenue By Geographic Area, Percentage

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- Definition

Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

+ References

No definition available.

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

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- Definition

This element represents the cash inflow during the period from the sale of a component of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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