Annual report pursuant to Section 13 and 15(d)

Note 4 ??? Inventories (Tables)

v3.22.2
Note 4 – Inventories (Tables)
12 Months Ended
Apr. 30, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
    2022   2021
Raw materials   $ 2,831,713     $     
Work-in-process     173,112           
Finished goods     891,045       362,072  
Total   $ 3,895,870     $ 362,072