Document and Entity Information (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Document and Entity Information:
Entity Registrant Name	Competitive Technologies Inc
Document Type	10-Q
Document Period End Date	Jun. 30, 2013
Amendment Flag	false
Entity Central Index Key	0000102198
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding	16,354,804
Entity Public Float	$ 3.5
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	2013
Document Fiscal Period Focus	Q2