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EARNINGS (LOSS) PER SHARE (Tables) | 6 Months Ended
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Oct. 31, 2021
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | Reconciliation of the weighted average shares outstanding for basic and diluted earnings (loss) per share for the three and six months ended October 31, 2021 and 2020, respectively, were as follows:
|  | Periods ended October 31, |
|  | Three months |  |  | Six months |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Weighted average shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic EPS Shares outstanding (weighted average) |  |  | 9,256,255 |  |  |  | 9,169,758 |  |  |  | 9,246,240 |  |  |  | 9,154,434 |
Effect of Dilutive Securities |  |  | 45,273 |  |  |  | 66,019 |  |  |  | ** |  |  |  | 51,389 |
Diluted EPS Shares outstanding |  |  | 9,301,528 |  |  |  | 9,235,777 |  |  |  | 9,246,240 |  |  |  | 9,205,823 |
** For the six-months ended October 31, 2021 dilutive securities are excluded from the calculation of earnings per share since the inclusion of such shares would be antidilutive due to the net loss for that period. The exercisable shares excluded for the three- and six-months ended October 31, 2021 was 198,000 and 223,000 options, respectively. The exercisable shares excluded for the three- and six-month periods ended October 31, 2020 was 303,000 and 436,000 options, respectively.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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