v3.26.1
Organization and Business Description - Schedule of Consolidated Financial Statements Reflect the Activities of the Company (Details)
12 Months Ended
Mar. 31, 2026
Schedule of Consolidated Financial Statements Reflect the Activities of the Company [Line Items]  
Date of incorporation, parent Jun. 25, 2024
Skyline Group [Member]  
Schedule of Consolidated Financial Statements Reflect the Activities of the Company [Line Items]  
Date of incorporation, parent Jun. 25, 2024
Jurisdiction of formation, parent Cayman Islands
Percentage of direct/indirect economic ownership, parent Parent
Principal activities, parent Investment holding
Skyline Builders (BVI) Holding Limited [Member]  
Schedule of Consolidated Financial Statements Reflect the Activities of the Company [Line Items]  
Date of incorporation, subsidiaries Jun. 27, 2024
Jurisdiction of formation, subsidiaries British Virgin Islands
Percentage of direct/indirect economic ownership, subsidiaries 100.00%
Principal activities, subsidiaries Investment holding
Kin Chiu [Member]  
Schedule of Consolidated Financial Statements Reflect the Activities of the Company [Line Items]  
Date of incorporation, subsidiaries Apr. 24, 2012
Jurisdiction of formation, subsidiaries Hong Kong
Percentage of direct/indirect economic ownership, subsidiaries 100.00%
Principal activities, subsidiaries Undertaking civil engineering works
Kin Chiu Development [Member]  
Schedule of Consolidated Financial Statements Reflect the Activities of the Company [Line Items]  
Date of incorporation, subsidiaries Apr. 10, 2021 [1]
Jurisdiction of formation, subsidiaries Hong Kong [1]
Percentage of direct/indirect economic ownership, subsidiaries 100.00% [1]
Principal activities, subsidiaries Undertaking civil engineering works [1]
GCM LLC [Member]  
Schedule of Consolidated Financial Statements Reflect the Activities of the Company [Line Items]  
Date of incorporation, subsidiaries Mar. 13, 2026
Jurisdiction of formation, subsidiaries United States of America
Percentage of direct/indirect economic ownership, subsidiaries 100.00%
Principal activities, subsidiaries Investment holding
[1] Acquired on November 17, 2025 (Note 17)