Basis of Presentation	3 Months Ended
Mar. 31, 2019
Disclosure Text Block [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1 – Basis of Presentation As used in this report, “Trans-Lux,” the “Company,” “we,” “us,” and “our” refer to Trans-Lux Corporation and its subsidiaries. Financial information included herein is unaudited, however, such information reflects all adjustments (of a normal and recurring nature), which are, in the opinion of management, necessary for the fair presentation of the Condensed Consolidated Financial Statements for the interim periods. The results for the interim periods are not necessarily indicative of the results to be expected for the full year. The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (the “SEC”) and therefore do not include all information and footnote disclosures required under accounting principles generally accepted in the United States of America (“GAAP”). The Condensed Consolidated Financial Statements included herein should be read in conjunction with the Consolidated Financial Statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. The Condensed Consolidated Balance Sheet at December 31, 2018 is derived from the December 31, 2018 audited financial statements. The following new accounting pronouncements were adopted in 2019: In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842). Under ASU 2016-02, a company must recognize for all leases (with the exception of leases with terms of 12 months or less) a lease liability representing a lessee's obligation to make lease payments arising from a lease and a right of use (“ROU”) asset representing the lessee's right to use, or control the use of, a specified asset for the lease term. A lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and an ROU asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842): Targeted Improvements, which provided an additional (and optional) transition method to adopt the new leases standard whereby an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The Company adopted this standard effective January 1, 2019 using the modified retrospective method in the period of adoption. The adoption of the standard had a material impact to our Condensed Consolidated Balance Sheets for the recognition of certain operating leases as ROU assets of approximately $1,463,000, long-term lease liabilities of $1,127,000 and current lease liabilities of $368,000, but did not have a material impact on our Condensed Consolidated Statements of Operations, Comprehensive Loss, Changes in Stockholders’ Deficit or Cash Flows. We have analyzed our leases, implemented systems, developed processes and internal controls and updated our accounting policies to comply with the standard's adoption requirements. The Company's rental revenue agreements were accounted for under previous lease accounting standards through December 31, 2018 and are accounted for within the scope of Topic 842 following our adoption on January 1, 2019. Topic 842 does not significantly affect the timing of recognition or presentation of revenue for our rental contracts. See Note 9 – Leases for further details. In June 2018, the FASB issued ASU 2018-07, Improvements to Nonemployee Share-Based Payment Accounting. ASU 2018-07 eliminates the separate accounting model for nonemployee share-based payment awards and generally requires companies to account for share-based payment transactions with nonemployees in the same way as share-based payment transactions with employees. The accounting remains different for attribution, which represents how the equity-based payment cost is recognized over the vesting period, and a contractual term election for valuing nonemployee equity share options. As required by this standard, the Company adopted ASU 2018-07 on January 1, 2019. The adoption of this standard did not have a material effect on the Company’s consolidated financial position and results of operations. Other than the foregoing changes, there have been no material changes in our significant accounting policies during the three months ended March 31, 2019 from the significant accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2018, which was filed with the SEC on April 15, 2019. The following new accounting pronouncements, and related impacts on adoption, are being evaluated by the Company: In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350). ASU 2017-04 simplifies the test for goodwill impairment. Public business entities should apply the amendments in ASU 2017-04 for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years (i.e., January 1, 2020), early application is permitted. The Company does not expect the adoption of this standard to have a material effect on the Company’s consolidated financial position and results of operations. In August 2018, the FASB issued ASU 2018-14, Compensation – Retirement Benefits – Defined Benefit Plans – General (Subtopic 715-20). ASU 2018-14 modifies the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. Public business entities should apply the amendments in ASU 2018-14 for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years (i.e., January 1, 2021). Early application is permitted. The Company does not expect the adoption of this standard to have a material effect on the Company’s consolidated financial position and results of operations.

Note 1 – Basis of Presentation

As used in this report, “Trans-Lux,” the “Company,” “we,” “us,” and “our” refer to Trans-Lux Corporation and its subsidiaries.

Financial information included herein is unaudited, however, such information reflects all adjustments (of a normal and recurring nature), which are, in the opinion of management, necessary for the fair presentation of the Condensed Consolidated Financial Statements for the interim periods. The results for the interim periods are not necessarily indicative of the results to be expected for the full year. The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (the “SEC”) and therefore do not include all information and footnote disclosures required under accounting principles generally accepted in the United States of America (“GAAP”). The Condensed Consolidated Financial Statements included herein should be read in conjunction with the Consolidated Financial Statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. The Condensed Consolidated Balance Sheet at December 31, 2018 is derived from the December 31, 2018 audited financial statements.

The following new accounting pronouncements were adopted in 2019:

In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842). Under ASU 2016-02, a company must recognize for all leases (with the exception of leases with terms of 12 months or less) a lease liability representing a lessee's obligation to make lease payments arising from a lease and a right of use (“ROU”) asset representing the lessee's right to use, or control the use of, a specified asset for the lease term. A lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and an ROU asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842): Targeted Improvements, which provided an additional (and optional) transition method to adopt the new leases standard whereby an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The Company adopted this standard effective January 1, 2019 using the modified retrospective method in the period of adoption. The adoption of the standard had a material impact to our Condensed Consolidated Balance Sheets for the recognition of certain operating leases as ROU assets of approximately $1,463,000, long-term lease liabilities of $1,127,000 and current lease liabilities of $368,000, but did not have a material impact on our Condensed Consolidated Statements of Operations, Comprehensive Loss, Changes in Stockholders’ Deficit or Cash Flows. We have analyzed our leases, implemented systems, developed processes and internal controls and updated our accounting policies to comply with the standard's adoption requirements. The Company's rental revenue agreements were accounted for under previous lease accounting standards through December 31, 2018 and are accounted for within the scope of Topic 842 following our adoption on January 1, 2019. Topic 842 does not significantly affect the timing of recognition or presentation of revenue for our rental contracts. See Note 9 – Leases for further details.

In June 2018, the FASB issued ASU 2018-07, Improvements to Nonemployee Share-Based Payment Accounting. ASU 2018-07 eliminates the separate accounting model for nonemployee share-based payment awards and generally requires companies to account for share-based payment transactions with nonemployees in the same way as share-based payment transactions with employees. The accounting remains different for attribution, which represents how the equity-based payment cost is recognized over the vesting period, and a contractual term election for valuing nonemployee equity share options. As required by this standard, the Company adopted ASU 2018-07 on January 1, 2019. The adoption of this standard did not have a material effect on the Company’s consolidated financial position and results of operations.

Other than the foregoing changes, there have been no material changes in our significant accounting policies during the three months ended March 31, 2019 from the significant accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2018, which was filed with the SEC on April 15, 2019.

The following new accounting pronouncements, and related impacts on adoption, are being evaluated by the Company:

In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350). ASU 2017-04 simplifies the test for goodwill impairment. Public business entities should apply the amendments in ASU 2017-04 for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years (i.e., January 1, 2020), early application is permitted. The Company does not expect the adoption of this standard to have a material effect on the Company’s consolidated financial position and results of operations.

In August 2018, the FASB issued ASU 2018-14, Compensation – Retirement Benefits – Defined Benefit Plans – General (Subtopic 715-20). ASU 2018-14 modifies the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. Public business entities should apply the amendments in ASU 2018-14 for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years (i.e., January 1, 2021). Early application is permitted. The Company does not expect the adoption of this standard to have a material effect on the Company’s consolidated financial position and results of operations.