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GOODWILL AND INTANGIBLE ASSETS - Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 27, 2013 | Apr. 27, 2013
Intangible Assets [Line Items] |  |
Gross | $ 42,472 | $ 42,472
Accumulated Amortization | 26,440 | 26,006
Net | 16,032 | 16,466
Indefinite-lived trade names | 1,800 | 1,800
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |
2014 | 1,746 |
2015 | 1,725 |
2016 | 1,541 |
2017 | 1,476 |
2018 | 1,379 |
Customer relationships and agreements |  |
Intangible Assets [Line Items] |  |
Gross | 16,579 | 16,579
Accumulated Amortization | 14,347 | 14,213
Net | 2,232 | 2,366
Finite-Lived Intangible Assets, Weighted Average Remaining Amortization Period | 10 years 7 months 15 days | 10 years 10 months 24 days
Trade names, patents and technology licences |  |
Intangible Assets [Line Items] |  |
Gross | 25,774 | 25,774
Accumulated Amortization | 12,073 | 11,779
Finite-Lived Intangible Assets, Weighted Average Remaining Amortization Period | 10 years 1 month 21 days | 10 years 4 months 24 days
Net | 13,701 | 13,995
Covenants not to compete |  |
Intangible Assets [Line Items] |  |
Gross | 119 | 119
Accumulated Amortization | 20 | 14
Net | $ 99 | $ 105
Finite-Lived Intangible Assets, Weighted Average Remaining Amortization Period | 4 years 2 months 0 days | 4 years 4 months 24 days

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 42, 45 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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