Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Schedule of Stock Option Activity (Details)

v3.21.2
Stockholders' Equity - Schedule of Stock Option Activity (Details) - $ / shares
1 Months Ended 12 Months Ended
Dec. 21, 2017
Sep. 30, 2020
Apr. 30, 2021
Apr. 30, 2020
Equity [Abstract]        
Number of Options Outstanding, Beginning of Period     100,000 145,646
Number of Options, Granted 75,000 75,000 5,000
Number of Options, Exercised    
Number of Options, Forfeited     (50,646)
Number of Options, Cancelled     (5,000)
Number of Options Outstanding, End of Period     95,000 100,000
Number of Options exercisable at end of period     95,000  
Number of Options expected to vest      
Weighted Average Exercise Price Outstanding, Beginning of Period     $ 14.31 $ 18.00
Weighted Average Exercise Price, Granted     8.10
Weighted Average Exercise Price, Exercised    
Weighted Average Exercise Price, Forfeited     24.44
Weighted Average Exercise Price, Cancelled    
Weighted Average Exercise Price Outstanding, End of Period     14.63 $ 14.31
Weighted Average Exercise Price Options exercisable at end of period     14.63  
Weighted Average Exercise Price Options expected to vest      
Weighted Average Exercise Price Weighted average fair value of options granted during the period      
Weighted Average Remaining Contractual Life (Years), Beginning of Period     2 years 10 months 14 days 2 years 3 months 15 days
Weighted Average Remaining Contractual Life in Years, Granted     0 years 10 years
Weighted Average Remaining Contractual Life (Years), Ending of Period     1 year 6 months 25 days 2 years 10 months 14 days