Document and Entity Information (USD $)	12 Months Ended
	May 31, 2014	Apr. 10, 2014	Nov. 30, 2013
Document And Entity Information
Entity Registrant Name	GREYSTONE LOGISTICS, INC.
Entity Central Index Key	0001088413
Document Type	10-K
Document Period End Date	May 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 Public Float			$ 6,377,390
Entity Common Stock, Shares Outstanding		26,461,201
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2014