Document And Entity Information - shares	6 Months Ended
	Nov. 30, 2023	Jan. 16, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Nov. 30, 2023
Document Transition Report	false
Entity File Number	000-26331
Entity Registrant Name	GREYSTONE LOGISTICS, INC.
Entity Incorporation, State or Country Code	OK
Entity Tax Identification Number	75-2954680
Entity Address, Address Line One	1613 East 15th Street
Entity Address, City or Town	Tulsa
Entity Address, State or Province	OK
Entity Address, Postal Zip Code	74120
City Area Code	918
Local Phone Number	583-7441
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		28,279,701
Entity Central Index Key	0001088413
Current Fiscal Year End Date	--05-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Amendment Flag	false