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Nature of business and organization (Details Narrative) - shares
Dec. 18, 2023
Feb. 02, 2022
Jan. 21, 2022
Sep. 08, 2021
Oct. 16, 2023
Jan. 18, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Stock issued of common stock, shares 2,500,000          
Mr Dekui Liu [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Stock issued of common stock, shares   15,170,000 15,170,000 1,000,000    
Inno Metal Studs Corp [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Acquired percentage of ordinary shares     100.00%      
Castor Building Tech LLC [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Owned subsidiary percentage           53.00%
Castor Building Tech LLC [Member] | New Ownership Agreement [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Owned subsidiary percentage         55.00%  
Inno Metal Studs Corp [Member] | Mr Dekui Liu [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Owned subsidiary percentage     100.00%      
Inno Research Institute LLC [Member] | Inno Metal Studs Corp [Member]            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Owned subsidiary percentage       65.00%