Note 1 - Nature of Operations (Details Textual)	Aug. 31, 2021	Aug. 31, 2020
Number of Wholly Owned Subsidiaries	3
Number of Stores	76	82
Number of States in which Entity Operates	20
Franchised Units [Member]
Number of Stores	71	72
Licensed Units [Member]
Number of Stores	3	7
Units Under Development [Member]
Number of Stores	2