v3.26.1
Cover - shares
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Entity Addresses [Line Items]    
Document Type 20-F  
Amendment Flag false  
Document Registration Statement false  
Document Annual Report true  
Document Transition Report false  
Document Shell Company Report false  
Document Period End Date Dec. 31, 2025  
Document Fiscal Period Focus FY  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Entity File Number 333-275240  
Entity Registrant Name Ten-League International Holdings Limited  
Entity Central Index Key 0001982012  
Entity Incorporation, State or Country Code E9  
Entity Address, Address Line One 7 Tuas Avenue 2  
Entity Address, Address Line Two (Jurisdiction of Incorporation or Organization)  
Entity Address, City or Town Singapore  
Entity Address, Country SG  
Entity Address, Postal Zip Code 639447  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status No  
Entity Interactive Data Current No  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period false  
Document Accounting Standard U.S. GAAP  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding 29,404,342  
ICFR Auditor Attestation Flag false  
Document Financial Statement Error Correction [Flag] false  
Auditor Firm ID 6967 6732
Auditor Name CT International LLP Onestop Assurance PAC
Auditor Location San Francisco, California Singapore
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheet of Ten-League International Holdings Limited and its subsidiaries (the Company) as of December 31, 2025, and the related consolidated statement of operations and comprehensive income, changes in shareholders’ equity, and cash flows for the year ended December 31, 2025, and the related notes (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025, and the results of its operations and its cash flows for the year then ended, in conformity with accounting principles generally accepted in the United States of America.  
Business Contact [Member]    
Entity Addresses [Line Items]    
Entity Address, Address Line One c/o 7 Tuas Avenue 2  
Entity Address, City or Town Singapore  
Entity Address, Country SG  
Entity Address, Postal Zip Code 639447  
City Area Code +65  
Local Phone Number 6862 0769  
Contact Personnel Name Lim Boon Ping