v3.25.2
Unrestricted Net Assets - Condensed Financial Information on Financial Position (Detail) - USD ($)
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Dec. 31, 2023
Assets [Abstract]        
Cash $ 1,866,303 $ 245,164    
Total current assets 8,555,592 5,913,268    
Total Assets 16,494,218 13,875,685    
Liabilities and Stockholders' Deficit        
Total current liabilities 11,073,580 9,673,053    
Total Liabilities 12,583,269 11,276,512    
Stockholders' Equity (Deficit)        
Common stock, $0.001 par value, 400,000,000 shares authorized, 95,464,000 shares issued and outstanding as of March 31, 2025 and 55,464,000 shares issued and outstanding as of December 31, 2024 95,464 55,464    
Subscription receivable (6,175,850) (1,375,000)    
Additional Paid-in Capital 23,580,165 15,487,165    
Accrued compensation expense (2,110,500) (2,927,250)    
Retained earnings (accumulated deficit) (12,324,547) (9,693,818)    
Accumulated other comprehensive income (loss) 841,217 1,047,612    
Total Stockholders' Equity (Deficit) 3,910,949 2,599,173 $ 586,503 $ 582,612
Total Liabilities and Stockholders' Deficit 16,494,218 13,875,685    
Northann Corp [Member]        
Assets [Abstract]        
Cash 0 0    
Amounts due from subsidiaries 6,554,838 4,422,688    
Total current assets 6,554,838 4,422,688    
All other non-current assets 0 0    
Interests in a subsidiary 9,939,380 9,452,997    
Total Assets 16,494,218 13,875,685    
Liabilities and Stockholders' Deficit        
All other current liabilities 329,795 358,626    
Total current liabilities 12,583,269 11,240,620    
Non-current liabilities 0 35,892    
Total Liabilities 12,583,269 11,276,512    
Stockholders' Equity (Deficit)        
Preferred stock – Series A, $0.001 par value, 100,000,000 shares authorized, 10,000,000 shares issued and outstanding as of March 31, 2025 and December 31, 2024 5,000 5,000    
Common stock, $0.001 par value, 400,000,000 shares authorized, 95,464,000 shares issued and outstanding as of March 31, 2025 and 55,464,000 shares issued and outstanding as of December 31, 2024 95,464 55,464    
Subscription receivable (6,175,850) (1,375,000)    
Additional Paid-in Capital 23,580,165 15,487,165    
Accrued compensation expense (2,110,500) (2,927,250)    
Retained earnings (accumulated deficit) (12,324,547) (9,693,818)    
Accumulated other comprehensive income (loss) 841,217 1,047,612    
Total Stockholders' Equity (Deficit) 3,910,949 2,599,173    
Total Liabilities and Stockholders' Deficit 16,494,218 13,875,685    
Northann Corp [Member] | Related Party [Member]        
Liabilities and Stockholders' Deficit        
Amounts due to subsidiaries $ 12,253,474 $ 10,881,994