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Note J - Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Oct. 31, 2012
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|  | Six Months Ended October 31, |
(in thousands) |  | 2012 |  |  | 2011 |
Supplemental disclosures: |  |  |  |  |  |
Interest paid |  | $ | 1,323 |  |  | $ | 940 |
Income taxes paid, net |  |  | 8,530 |  |  |  | 5,978 |
Non-cash transactions: |  |  |  |  |  |  |  |
Inventory acquired in repossession and payment protection plan claims |  |  | 19,100 |  |  |  | 17,235 |

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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