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Note J - Weighted Average Shares Outstanding (Tables) | 12 Months Ended
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Apr. 30, 2013
Weighted Average Shares Outstanding [Abstract] |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | Years Ended April 30, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Weighted average shares outstanding-basic |  |  | 9,111,851 |  |  |  | 9,793,616 |  |  |  | 10,861,403 |
Dilutive options and restricted stock |  |  | 457,851 |  |  |  | 362,739 |  |  |  | 226,840 |
Weighted average shares outstanding-diluted |  |  | 9,569,702 |  |  |  | 10,156,355 |  |  |  | 11,088,243 |
Antidilutive securities not included: |  |  |  |  |  |  |  |  |  |  |  |
Options |  |  | 40,000 |  |  |  | 27,500 |  |  |  | 556,000 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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