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Income Taxes - Schedule of Components of Income Taxes Expense (Benefit) (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Current:        
U.S. federal    
U.S. state and local    
China    
Total current income taxes expense    
Deferred:        
U.S. federal     (4,874) (3,256,007)
U.S. state and local     (1,650) (1,102,392)
China     93,437 (183,443)
Total deferred income taxes (benefit)     86,913 (4,541,842)
Change in valuation allowance     (86,913) 4,541,842
Total income taxes expense