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Valuation and Qualifying Account (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jun. 01, 2013 | Jun. 02, 2012 | May 28, 2011
Allowance for doubtful accounts |  |  |  |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |
Balance at beginning of period | $ 1,058 |  | $ 438 |  | $ 369 |
Charged to expense | 135 | [1] | 638 | [1] | 318 | [1]
Deductions | 101 | [2] | 18 | [2] | 249 | [2]
Balance at end of period | 1,092 |  | 1,058 |  | 438 |
Inventory provisions |  |  |  |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |
Balance at beginning of period | 2,976 |  | 4,519 |  | 11,050 |
Charged to expense | 412 | [3] | 445 | [3] | 1,055 | [3]
Deductions | 673 | [4] | 1,988 | [4] | 7,586 | [4]
Balance at end of period | 2,715 |  | 2,976 |  | 4,519 |
Warranty reserves |  |  |  |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |  |  |
Balance at beginning of period | 148 |  | 138 |  | 138 |
Charged to expense | 259 |  | 328 |  | 341 |
Deductions | 219 |  | 318 |  | 341 |
Balance at end of period | $ 188 |  | $ 148 |  | $ 138 |
[1] | Charges to bad debt expense
[2] | Uncollectible amounts written off, net of recoveries and foreign currency translation.
[3] | Charges to cost of sales. Included in fiscal 2013 are inventory write-downs of $0.2 million for EDG and $0.2 million for Canvys. Included in fiscal 2012 are inventory write-downs of $0.2 million for EDG and $0.2 million for Canvys. Included in fiscal 2011 are inventory write-downs of $0.7 million for EDG and $0.4 million for Canvys.
[4] | Inventory disposed of or sold, net of foreign currency translation.

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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