|3 Months Ended|
Aug. 31, 2022
|Inventory Disclosure [Abstract]|
|Schedule of Inventory, Current [Table Text Block]||
Inventory, consisting of material, overhead, labor, and manufacturing overhead, is stated at the lower of cost (first-in, first-out) or market, and consists of the following:
Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef