Cover - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 28, 2024	Jun. 30, 2023
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Financial Statement Error Correction [Flag]	false
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	false
Amendment Flag	false
Document Period End Date	Dec. 31, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Information [Line Items]
Entity Registrant Name	TRANS-LUX CORPORATION
Entity Central Index Key	0000099106
Entity File Number	1-2257
Entity Tax Identification Number	13-1394750
Entity Incorporation, State or Country Code	DE
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Public Float			$ 1,025,000
Entity Contact Personnel [Line Items]
Entity Address, Address Line One	254 West 31st Street
Entity Address, Address Line Two	13th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10001
Entity Phone Fax Numbers [Line Items]
City Area Code	800
Local Phone Number	243-5544
Entity Listings [Line Items]
Title of 12(g) Security	Common Stock, $0.001 par value
Entity Common Stock, Shares Outstanding		13,496,276