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Cash And Bank Balances And Restricted Cash - Summary of detailed information about cash and bank balances (Detail) - HKD ($)
Dec. 31, 2022
Dec. 31, 2021
Cash and cash equivalents [abstract]    
Cash on hand $ 1,497 $ 595,992
General bank accounts 1,078,409,838 525,610,116
Total cash and bank balances $ 1,078,411,335 $ 526,206,108