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Share-Based Compensation (Tables)
3 Months Ended
Jul. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Schedule of Stock Option Activity

A summary of stock options under our Stock Incentive Plans is detailed in the following table.

 

  

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 
Schedule of Non-vested Restricted Stock Activity

A summary of non-vested restricted stock under our Stock Incentive Plans is as follows:

  

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 
Performance Stock Options [Member]  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Schedule of Stock Option Activity

A summary of performance stock options under our Stock Incentive Plans is detailed in the following table.

  

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      $