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Share-Based Compensation | 3 Months Ended
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Jul. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Share-Based Compensation | (11) Share-Based Compensation In 2015, upon approval by the Company’s shareholders, the Company’s 2015 Omnibus Incentive Plan (the “2015 Plan”) became effective. A total of 1,332,036 shares were authorized for issuance under the 2015 Omnibus Incentive Plan, including shares available for awards under the 2006 Stock Incentive Plan remaining at the time that plan terminated, or that were subject to awards under the 2006 Stock Incentive Plan that thereafter terminated by reason of expiration, forfeiture, cancellation or otherwise. If any award under the 2006 Stock Incentive Plan or 2015 Plan expires, is cancelled, terminates unexercised or is forfeited, those shares become again available for grant under the 2015 Plan. The 2015 Plan will terminate ten years after its effective date, in October 2025, but is subject to earlier termination as provided in the 2015 Plan. As of July 31, 2022, the Company had 695,127 shares available for future issuance under the 2015 Plan. On January 18, 2018, the Company’s Board of Directors adopted the Company’s Employment Inducement Incentive Award Plan (the “2018 Inducement Plan”) pursuant to which the Company reserved 25,000 shares of common stock for issuance under the Inducement Plan. In accordance with Rule 711(a) of the NYSE American Company Guide, awards under the Inducement Plan may only be made to individuals not previously employees of the Company (or following such individuals’ bona fide period of non-employment with the Company), as an inducement material to the individuals’ entry into employment with the Company. An award is any right to receive the Company’s common stock pursuant to the 2018 Inducement Plan, consisting of a performance share award, restricted stock award, a restricted stock unit award or a stock payment award. On February 9, 2022, the 2018 Inducement Plan was amended to increase the authorized shares by 250,000 to 275,000. As of July 31, 2022, there were 211,487 shares available for grant under the 2018 Inducement Plan. The 2015 Plan and the 2018 Inducement Plan together comprise the “Stock Incentive Plans”. Stock Options The Company estimates the fair value of each stock option award granted with service-based vesting requirements, using the Black-Scholes option pricing model, assuming no dividends, and using the weighted average valuation assumptions noted in the following table. The risk-free rate is based on the US Treasury yield curve in effect at the time of grant commensurate with the expected life of the award. The expected life (estimated period of time outstanding) of the stock options granted was estimated using the “simplified” method as permitted by the SEC’s Staff Accounting Bulletin No. 110, Share-Based Payment. Expected volatility is based on the Company’s historical volatility over the expected life of the stock option granted. The Company did not grant any stock options during the three months ended July 31, 2022 and 2021. A summary of stock options under our Stock Incentive Plans is detailed in the following table. Schedule of Stock Option Activity
|  | Shares Underlying Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term (In Years) |
Outstanding as of April 30, 2022 |  |  | 1,110,356 |  |  | $ | 2.34 |  |  |  | 9.2 |
Granted |  |  | — |  |  | $ | — |  |  |  |  |
Exercised |  |  | — |  |  | $ | — |  |  |  |  |
Cancelled/forfeited |  |  | (37 | ) |  | $ | 400.00 |  |  |  |  |
Outstanding as of July 31, 2022 |  |  | 1,110,319 |  |  | $ | 2.33 |  |  |  | 8.9 |
Exercisable as of July 31, 2022 |  |  | 297,467 |  |  | $ | 4.60 |  |  |  | 7.6 |
As of July 31, 2022, the total intrinsic value of outstanding and exercisable options was approximately zero. As of July 31, 2022, approximately 813,000 options were unvested, which had an intrinsic value of zero and a weighted average remaining contractual term of 9.4 years. There was approximately $96,000 and $110,000 of total recognized compensation cost related to stock options during each of the three months ended July 31, 2022 and 2021, respectively. As of July 31, 2022, there was approximately $0.7 million of total unrecognized compensation cost related to non-vested stock options granted under the plans. This cost is expected to be recognized over a weighted-average period of 2.3 years. Performance Stock Options A summary of performance stock options under our Stock Incentive Plans is detailed in the following table. Schedule of Stock Option Activity
|  | Shares Underlying Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term (In Years) |
Outstanding as of April 30, 2022 |  |  | 210,122 |  |  | $ | 2.20 |  |  |  | 8.8 |
Granted |  |  | — |  |  | $ | — |  |  |  |  |
Exercised |  |  | — |  |  | $ | — |  |  |  |  |
Cancelled/forfeited |  |  | — |  |  | $ | — |  |  |  |  |
Outstanding as of July 31, 2022 |  |  | 210,122 |  |  | $ | 2.20 |  |  |  | 8.6 |
Exercisable as of July 31, 2022 |  |  | — |  |  | $ | — |  |  |  |  |
As of July 31, 2022, approximately 210,000 options were unvested, which had an intrinsic value of zero and a weighted average remaining contractual term of 8.6 years. There was approximately $52,500 and $95,000 of total recognized compensation cost related to stock options during the three months ended July 31, 2022 and 2021, respectively. As of July 31, 2022, there was approximately $0.1 million of total unrecognized compensation cost related to non-vested stock options granted under the plans. This cost is expected to be recognized over a weighted-average period of 0.6 years. Restricted Stock Compensation expense for non-vested restricted stock is generally recorded based on its market value on the date of grant and recognized ratably over the associated service and performance period. During the three months ended July 31, 2022 and 2021, the Company granted 51,500 and zero shares, respectively that were subject to service-based vesting requirements. A summary of non-vested restricted stock under our Stock Incentive Plans is as follows: Schedule of Non-vested Restricted Stock Activity
|  | Number of Shares |  |  | Weighted Average Price per Share |
Unvested at April 30, 2022 |  |  | 827,764 |  |  | $ | 1.41 |
Granted |  |  | 51,500 |  |  | $ | 1.12 |
Vested and issued |  |  | (16,667 | ) |  | $ | 2.37 |
Cancelled/forfeited |  |  | — |  |  |  |  |
Unvested at July 31, 2022 |  |  | 862,597 |  |  | $ | 1.38 |
There was approximately $184,000 and $14,000 of total recognized compensation cost related to restricted stock for the three months ended July 31, 2022 and 2021, respectively. As of July 31, 2022, there is approximately $821,067 of unrecognized compensation cost remaining related to unvested restricted stock granted under our plans. This cost is expected to be recognized over a weighted-average period of 1.8 years.

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