Document And Entity Information (USD $)	12 Months Ended
	May 31, 2012	Jul. 27, 2012	Nov. 30, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	IMMUCOR INC
Document Type	10-K
Current Fiscal Year End Date	--05-31
Entity Common Stock, Shares Outstanding		100
Entity Public Float			$ 0
Amendment Flag	false
Entity Central Index Key	0000736822
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	May 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY