Note 4 - Units Open and Under Development - Operating Units (Details)	May 31, 2023	May 31, 2022
Operating Units and Units with Franchise Agreements	74	74
Franchised Units [Member]
Operating Units and Units with Franchise Agreements	67	68
Licensed Units [Member]
Operating Units and Units with Franchise Agreements	3	4
Total Franchised Owned and Licensed Units [Member]
Operating Units and Units with Franchise Agreements	70	72
Unopened Store [Member]
Operating Units and Units with Franchise Agreements	4	2