Document and Entity Information (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Aug. 20, 2012
Document and Entity Information
Entity Registrant Name	Competitive Technologies Inc
Document Type	10-Q
Document Period End Date	Jun. 30, 2012
Amendment Flag	true
Entity Central Index Key	0000102198
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		14,997,304
Entity Public Float		$ 12.2
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2
Amendment Description	1