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Cash Flow Information (Tables) | 3 Months Ended
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Jul. 29, 2012
Schedule of Payments for Interest and Income Taxes | Payments for interest and income taxes follows:
|  | Three months ended |
(dollars in thousands) |  | July 29, 2012 |  |  | July 31, 2011 |
Interest |  | $ | 14 |  |  | $ | - |
Net income tax payments |  |  | 1,026 |  |  |  | 891 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration