v3.26.1
Cover
 12 Months Ended
Apr. 30, 2026
shares
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 Apr. 30, 2026
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2026
Current Fiscal Year End Date --04-30
Entity File Number 333-290094
Entity Registrant Name Barentsz Capital Limited
Entity Central Index Key 0002074160
Entity Incorporation, State or Country Code D8
Entity Address, Address Line One Room 903, 9/F
Entity Address, Address Line Two Singga Commercial Centre
Entity Address, Address Line Three 144-151 Connaught Road West
Entity Address, City or Town Sai Ying Pun
Entity Address, Country HK
Entity Address, Postal Zip Code 00000
Title of 12(b) Security Class A ordinary shares, par value US$0.00001 per share
Trading Symbol BRKK
Security Exchange Name NASDAQ
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status No
Entity Interactive Data Current Yes
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
ICFR Auditor Attestation Flag false
Document Financial Statement Error Correction [Flag] false
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheets of Barentsz Capital Limited and its subsidiaries (the “Company”) as of April 30, 2026, 2025 and 2024, and the related consolidated statements of operations and comprehensive income, changes in shareholders’ equity, and cash flows for years ended April 30, 2026, 2025 and 2024 and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of April 30, 2026, 2025 and 2024, and the results of its operations and its cash flows for the years ended April 30, 2026, 2025 and 2024, in conformity with accounting principles generally accepted in the United States of America.
Auditor Name J&S ASSOCIATE PLT
Auditor Firm ID 6743
Auditor Location Kuala Lumpur, Malaysia
Common Class A [Member]  
Entity Addresses [Line Items]  
Entity Common Stock, Shares Outstanding 9,002,000
Common Class B [Member]  
Entity Addresses [Line Items]  
Entity Common Stock, Shares Outstanding 10,998,000
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One Room 903, 9/F
Entity Address, Address Line Two Singga Commercial Centre
Entity Address, Address Line Three 144-151 Connaught Road West
Entity Address, City or Town Sai Ying Pun
Entity Address, Country HK
Entity Address, Postal Zip Code 00000
City Area Code +852
Local Phone Number 59430987
Contact Personnel Name WEI Xiao, Chief Executive Officer