SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Oct. 26, 2013	Oct. 27, 2012	Oct. 26, 2013 segment	Oct. 27, 2012
Segment Reporting [Abstract]
Number of reportable segments			4
Segment Reporting Information [Line Items]
Gain (Loss) Related to Litigation Settlement	$ 0	$ 20,000	$ 0	$ 20,000
Net sales	190,914	129,758	358,180	248,496
Transfers between segments	0	0	0	0
Net sales to unaffiliated customers	190,914	129,758	358,180	248,496
Income (loss) from operations	21,734	27,115	36,862	31,285
Interest expense, net	117	53	177	7
Other expense, net	368	536	493	495
Income/(loss) before income taxes	21,249	26,526	36,192	30,783
Automotive
Segment Reporting Information [Line Items]
Gain (Loss) Related to Litigation Settlement				20,000
Net sales	126,619	80,298	230,396	151,606
Transfers between segments	(546)	(145)	(845)	(408)
Net sales to unaffiliated customers	126,073	80,153	229,551	151,198
Income (loss) from operations	17,992	26,487	30,420	29,147
Interconnect
Segment Reporting Information [Line Items]
Net sales	44,329	33,986	88,609	66,270
Transfers between segments	(688)	(736)	(1,271)	(1,305)
Net sales to unaffiliated customers	43,641	33,250	87,338	64,965
Income (loss) from operations	6,883	4,130	14,323	9,004
Power Products
Segment Reporting Information [Line Items]
Net sales	18,782	12,573	36,205	24,740
Transfers between segments	(68)	(57)	(117)	(105)
Net sales to unaffiliated customers	18,714	12,516	36,088	24,635
Income (loss) from operations	3,616	(260)	6,038	51
Other
Segment Reporting Information [Line Items]
Net sales	2,329	3,852	5,040	7,745
Transfers between segments	(40)	(13)	(71)	(39)
Net sales to unaffiliated customers	2,289	3,839	4,969	7,706
Income (loss) from operations	(307)	599	(149)	1,548
Eliminations/Corporate
Segment Reporting Information [Line Items]
Net sales	(1,145)	(951)	(2,070)	(1,865)
Transfers between segments	1,342	951	2,304	1,857
Net sales to unaffiliated customers	197	0	234	(8)
Income (loss) from operations	$ (6,450)	$ (3,841)	$ (13,770)	$ (8,465)

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The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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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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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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Amount of revenue from transactions with other operating segments of the same entity.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Amount of total revenue for the reportable segments, including revenue from external customers, transactions with other operating segments of the same entity, and (gross) interest revenue. All considered to be "operating revenue" for purposes of the taxonomy.

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