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Stock-Based Compensation (Tables)
6 Months Ended
Oct. 31, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Stock Option Activity

A summary of stock options under our stock incentive plans is detailed in the following table.

 

                Weighted  
                Average  
          Weighted     Remaining  
    Shares     Average     Contractual  
    Underlying     Exercise     Term  
    Options     Price     (In Years)  
Outstanding as of April 30, 2020     555,475     $ 3.19       9.5  
Granted     -     $ -          
Exercised     -     $ -          
Cancelled/forfeited     (23,969 )   $ 7.11          
Outstanding as of October 31, 2020     531,506     $ 3.02       9.0  
Exercisable as of October 31, 2020     60,506     $ 18.32       7.6  

 

 

Schedule of Non-vested Restricted Stock Activity

A summary of non-vested restricted stock under our stock incentive plans is as follows:

 

          Weighted  
    Number     Average Price per  
    of Shares     Share  
             
Issued and unvested at April 30, 2020     13,513     $ 1.48  
Granted     -     $ -  
Vested     -     $ -  
Cancelled/forfeited     -     $ -  
Issued and unvested at October 31, 2020     13,513     $ 1.48