| Document and Entity Information | 12 Months Ended |
| Dec. 31, 2021shares | |
| Entity Addresses [Line Items] | |
| Entity Registrant Name | Trinity Biotech plc |
| Entity Central Index Key | 0000888721 |
| Document Type | 20-F/A |
| Document Period End Date | Dec. 31, 2021 |
| Current Fiscal Year End Date | --12-31 |
| Amendment Flag | true |
| Amendment Description | EXPLANATORY NOTE Trinity Biotech plc (the “Company”) is filing this Amendment No. 1 (the “Amendment”) to the Annual Report on Form 20-F, filed on May 2, 2022 (the “Original Form 20-F”), solely to correct Exhibit 1.1 to the Original Form 20-F to replace the Memorandum and Articles of Association of the Company with the current version, as amended on September 27, 2012. Except as described above, no changes have been made to the Original Form 20-F. Furthermore, this Amendment does not change any previously reported financial results, nor does it reflect events occurring after the filing of the Original Form 20-F. Accordingly, this Amendment should be read in conjunction with the Original Form 20-F and the Company’s filings with the SEC subsequent to the filing of the Original Form 20-F. Pursuant to Rule 12b-15 under the Securities Exchange Act of 1934 (the “Exchange Act”), this Amendment also includes as exhibits the certifications of the Principal Executive Officer and Principal Financial Officer of the Company pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Item 15 of Form 20-F, paragraphs 3, 4, and 5 have been omitted from such certifications. The Company is not including certifications pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) because no financial statements are filed with this Amendment. |
| Entity Voluntary Filers | No |
| Entity Emerging Growth Company | false |
| Document Fiscal Period Focus | FY |
| Entity Filer Category | Non-accelerated Filer |
| Entity Current Reporting Status | Yes |
| Entity Well-known Seasoned Issuer | No |
| Entity Shell Company | false |
| Entity Common Stock, Shares Outstanding | 83,606,810 |
| Document Fiscal Year Focus | 2021 |
| Entity Incorporation, State or Country Code | L2 |
| Document Annual Report | true |
| Document Registration Statement | false |
| Document Shell Company Report | false |
| Document Transition Report | false |
| Entity Interactive Data Current | Yes |
| Title of 12(b) Security | Ordinary Shares |
| Trading Symbol | TRIB |
| Entity Address, Address Line One | IDA Business Park |
| Entity Address, City or Town | Bray, Co. Wicklow |
| Entity Address, Country | IE |
| Document Accounting Standard | International Financial Reporting Standards |
| Entity File Number | 0-22320 |
| Security Exchange Name | NASDAQ |
| ICFR Auditor Attestation Flag | false |
| Auditor Name | Grant Thornton |
| Auditor Location | Dublin, Ireland |
| Auditor Firm ID | 1402 |
| Business Contact [Member] | |
| Entity Addresses [Line Items] | |
| City Area Code | 353 |
| Contact Personnel Name | John Gillard |
| Entity Address, Address Line One | IDA Business Park |
| Entity Address, City or Town | Bray, Co. Wicklow |
| Entity Address, Country | IE |
| Local Phone Number | 1276 9800 |
| Contact Personnel Fax Number | 1276 9888 |
