Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

Amount of investment in equity security without readily determinable fair value.

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- Definition

Amount of cumulative impairment loss on investment in equity security without readily determinable fair value.

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- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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LONG-TERM INVESTMENTS - Additional Information (Details) - HKD ($) $ in Thousands	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2022	Sep. 30, 2022	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021	Jan. 31, 2019
LONG-TERM INVESTMENTS
Equity method investments	$ 233,834	$ 229,970			$ 7,798	$ 6,709
Loss on investment	9,398	13,324
Impairment provision of equity method investments	0
Equity investments without readily determinable fair values	15,754	15,754			15,596
Impairment provision of equity investments without readily determinable fair values	0	0			$ 0
TH Fund LP
LONG-TERM INVESTMENTS
Equity method investments	$ 235,434
Percentage of equity interest (as a percent)	16.00%				10.00%	20.00%
Loss on investment			$ 278	$ 543
Impairment provision of equity method investments	$ 5,888	5,888			$ 5,888
Equity investments without readily determinable fair values	$ 0				0
Impairment provision of equity investments without readily determinable fair values		$ 0			$ 0
Newflow Amity Fund I, LP
LONG-TERM INVESTMENTS
Percentage of equity interest (as a percent)					2.75%