Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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-Name Accounting Standards Codification
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Name:	us-gaap_ShortTermInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

SHORT-TERM INVESTMENTS (Details) - HKD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
SHORT-TERM INVESTMENTS
Short-term investments	$ 13,373	$ 17,501	$ 1,169,741
Money market funds
SHORT-TERM INVESTMENTS
Short-term investments	7,894		$ 1,169,741
Financial assets at fair value through profit or loss
SHORT-TERM INVESTMENTS
Short-term investments	$ 5,479	$ 17,501