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Document and Entity Information
3 Months Ended
Sep. 30, 2011
Nov. 17, 2011
Document and Entity Information  
Entity Registrant NameTRANS LUX CORP 
Document Type10-Q 
Document Period End DateSep. 30, 2011
Amendment Flagfalse 
Entity Central Index Key0000099106 
Current Fiscal Year End Date--12-31 
Entity Common Stock, Shares Outstanding 4,686,923
Entity Filer CategorySmaller Reporting Company 
Entity Current Reporting StatusYes 
Entity Voluntary FilersNo 
Entity Well-known Seasoned IssuerNo 
Document Fiscal Year Focus2011 
Document Fiscal Period FocusQ3