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Stock Options and Share-Based Compensation (Tables) | 12 Months Ended
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Apr. 30, 2023
Equity [Abstract] |
Summary of RSU Activity and Weighted Average Exercise Price | The following table summarizes the RSU activity and weighted averages.
|  | 2023 |  | 2022
|  | Number of RSUs |  | Weighted Average Grant Date Fair Value |  | Number of RSUs |  | Weighted Average Grant Date Fair Value
Outstanding at beginning of year |  | 144,827 |  |  | $ | 12.24 |  |  | 125,217 |  |  | $ | 12.71 |
Granted |  | 87,969 |  |  | $ | 13.43 |  |  | 67,750 |  |  | $ | 13.74 |
Vested |  | (50,315) |  |  | $ | 13.86 |  |  | (31,943) |  |  | $ | 12.44 |
Forfeited |  | (22,841) |  |  | $ | 15.37 |  |  | (16,197) |  |  | $ | 21.83 |
Outstanding at end of year |  | 159,640 |  |  | $ | 11.94 |  |  | 144,827 |  |  | $ | 12.24 |
Summary of Stock Option Activity and Weighted Average Exercise Price | Stock option activity and weighted average exercise price are summarized as follows:
| 2023 |  | 2022
| Number of Shares |  | Weighted Average Exercise Price |  | Number of Shares |  | Weighted Average Exercise Price
Outstanding at beginning of year | 47,400 |  |  | $ | 19.34 |  |  | 84,300 |  |  | $ | 18.56 |
Canceled | (7,850) |  |  | $ | 20.08 |  |  | (35,400) |  |  | $ | 17.94 |
Exercised | (5,650) |  |  | $ | 14.54 |  |  | (1,500) |  |  | $ | 8.59 |
Outstanding at end of year | 33,900 |  |  | $ | 19.97 |  |  | 47,400 |  |  | $ | 19.34 |
Exercisable at end of year | 33,900 |  |  | $ | 19.97 |  |  | 47,400 |  |  | $ | 19.34 |
Summary of Options Outstanding, Exercisable, and Weighted Average Exercise Prices within Exercise Price Range | The number of options outstanding, exercisable, and their weighted average exercise prices were within the following ranges at April 30, 2023:
| $15.85-$23.62
Options outstanding | 33,900 |
Weighted average exercise price | $ | 19.97 |
Weighted average remaining contractual life | 2.5 years
Aggregate intrinsic value | $ | 1,400 |
Options exercisable | 33,900 |
Weighted average exercise price | $ | 19.97 |
Aggregate intrinsic value | 1,400 |

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- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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