TAXATION - Net operating loss carry forwards (Details) - HKD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
TAXATION
Net operating loss carryforwards	$ 1,562,679	$ 1,602,433
Net operating loss carryforwards, provided for valuation allowance	$ 1,562,679	$ 1,602,433

The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

Name:	us-gaap_OperatingLossCarryforwardsValuationAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant