Concentration Risk, Minimum Concentration Risk Threshold, Percentage

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- Definition

Number of Operating Segments that Aggregate into One Reportable Segment

+ References

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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.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(14))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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- Definition

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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Segment Information - Narrative (Details) $ in Thousands	6 Months Ended	12 Months Ended
Segment Information - Narrative (Details) $ in Thousands	Jul. 31, 2016	Jan. 28, 2018 USD ($)	Jan. 29, 2017 USD ($)	Jan. 31, 2016
Segment Reporting Information [Line Items]
Number of operating segments	5	4		5
Number of operating segments that aggregate into one reportable segment		4	4	4
Number of reportable segments		1	1	1
Net book value of equipment and machinery		$ 124,586	$ 108,910
Machinery and equipment \| Foundry in China
Segment Reporting Information [Line Items]
Net book value of equipment and machinery		15,400	5,100
Machinery and equipment \| Foundry In Malaysia [Member]
Segment Reporting Information [Line Items]
Net book value of equipment and machinery		$ 6,100	$ 2,300
Net sales revenue
Segment Reporting Information [Line Items]
Minimum concentration risk threshold		10.00%