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CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) (USD $) In Thousands, unless otherwise specified | Common Shares [Member] | Capital in Excess of Par Value [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member] | Non-Controlling Interests [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Apr. 30, 2011 | $ 51,909 | $ 222,339 | $ 105,872 | $ (18,804) | $ 2,824 | $ 364,140
Comprehensive income |  |  |  |  |  |
Net income |  |  | 87,966 |  | 942 |
Unrealized loss on marketable securities arising during the period |  |  |  | (7) |  |
Reclassification adjustment for gain on marketable securities included in net income |  |  |  | (324) |  |
Currency translation adjustment |  |  |  | 35 | (167) |
Change in fair value of cash flow hedge |  |  |  | 28 |  |
Net pension amortization and net actuarial loss |  |  |  | (12,209) |  |
Total comprehensive income |  |  |  |  |  | 76,264
Stock issued for stock and employee benefit plans, net of cancellations | 835 | 4,011 | (509) |  |  | 4,337
Purchases of common stock | (500) | (958) | (3,721) |  |  | (5,179)
Stock option and restricted stock expense |  | 5,717 | 1 |  |  | 5,718
Tax benefit from exercise of options |  | 223 |  |  |  | 223
Change in noncontrolling interest upon deconsolidation of VIE and other changes in noncontrolling interests |  |  |  |  | 2,312 | 2,312
Balance at Apr. 28, 2012 | 52,244 | 231,332 | 189,609 | (31,281) | 5,911 | 447,815
Comprehensive income |  |  |  |  |  |
Net income |  |  | 11,017 |  | 510 | 11,527
Unrealized loss on marketable securities arising during the period |  |  |  | (28) |  |
Reclassification adjustment for gain on marketable securities included in net income |  |  |  | (503) |  |
Currency translation adjustment |  |  |  | 944 | 6 | 950
Change in fair value of cash flow hedge |  |  |  | 102 |  | 102
Net pension amortization and net actuarial loss |  |  |  | 946 |  |
Total comprehensive income |  |  |  |  |  | 12,994
Stock issued for stock and employee benefit plans, net of cancellations | 472 | 539 | (1,369) |  |  | (358)
Purchases of common stock | (300) | (3,607) | (105) |  |  | (4,012)
Stock option and restricted stock expense |  | 6,959 |  |  |  | 6,959
Tax benefit from exercise of options |  | 1,025 |  |  |  | 1,025
Change in noncontrolling interest upon deconsolidation of VIE and other changes in noncontrolling interests |  |  |  |  | 97 | 97
Balance at Oct. 27, 2012 | $ 52,416 | $ 236,248 | $ 199,152 | $ (29,820) | $ 6,524 | $ 464,520

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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section B -Paragraph 11A -Chapter 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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_StockRepurchasedDuringPeriodValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration