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Financial information of the parent company (Details 2) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income $ 1,406,282 $ 7,024,054 $ 5,242,789
Adjustments to reconcile net income to cash used in operating activities:      
Net cash used in operating activities (1,987,028) (3,132,666) (4,472,780)
CHANGES IN CASH (143,723) 68,238 (935,098)
CASH, BEGINNING OF THE YEAR 268,102 199,864 1,134,962
CASH, END OF THE YEAR 128,379 268,102 199,864
Parent Company [Member]      
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income 1,453,191 7,417,705 5,782,018
Adjustments to reconcile net income to cash used in operating activities:      
Equity income of subsidiaries (1,453,191) (7,417,705) (5,782,018)
Net cash used in operating activities
CHANGES IN CASH
CASH, BEGINNING OF THE YEAR
CASH, END OF THE YEAR