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Note E - Accrued Liabilities (Tables) | 3 Months Ended
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Jul. 31, 2013
Other Liabilities and Financial Instruments Subject to Mandatory Redemption [Abstract] |
Schedule of Accrued Liabilities [Table Text Block] |
(In thousands) |  | July 31, 2013 |  |  | April 30, 2013 |
Employee compensation |  | $ | 4,073 |  |  | $ | 5,227 |
Cash overdrafts (see Note B) |  |  | 2,456 |  |  |  | 1,537 |
Deferred service contract revenue (see Note B) |  |  | 3,629 |  |  |  | 3,464 |
Deferred sales tax (see Note B) |  |  | 2,604 |  |  |  | 2,436 |
Interest |  |  | 226 |  |  |  | 237 |
Other |  |  | 3,426 |  |  |  | 3,224 |
|  | $ | 16,414 |  |  | $ | 16,125 |

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