Document and Entity Information	3 Months Ended
	Aug. 31, 2014	Oct. 13, 2014
Document And Entity Information
Entity Registrant Name	GREYSTONE LOGISTICS, INC.
Entity Central Index Key	0001088413
Document Type	10-Q
Document Period End Date	Aug. 31, 2014
Amendment Flag	false
Current Fiscal Year End Date	--05-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		26,461,201
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2015