Quarterly report pursuant to Section 13 or 15(d)

Inventories (Tables)

v3.21.1
Inventories (Tables)
9 Months Ended
Feb. 28, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current

    

February 28, 2021

    

May 31, 2020

Raw materials

$

29,004

$

19,147

Work-in-progress

 

64,533

 

Total

$

93,537

$

19,147