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RELATED PARTY BALANCES AND TRANSACTIONS - Transactions with related parties (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Alphalion Group Limited |  |  |
RELATED PARTY BALANCES AND TRANSACTIONS |  |  |
Transactions with related parties | $ (116,150) | $ (150,360) | $ (135,117)
Commissions and Interest Income | Individual directors and executive officers |  |  |
RELATED PARTY BALANCES AND TRANSACTIONS |  |  |
Transactions with related parties | 1,402,815 | $ 1,501,351 | 147,662
Execution and clearing fees | Interactive Brokers |  |  |
RELATED PARTY BALANCES AND TRANSACTIONS |  |  |
Transactions with related parties | 0 |  | (1,751,505)
Commissions, Financing Service Fees, Interest Income and Other Revenues | Interactive Brokers |  |  |
RELATED PARTY BALANCES AND TRANSACTIONS |  |  |
Transactions with related parties | $ 0 |  | $ 9,727,350

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