SIGNIFICANT ACCOUNTING POLICIES (Details) ¥ in Thousands	12 Months Ended
Dec. 31, 2025 CNY (¥)	Dec. 31, 2024 CNY (¥)	Dec. 31, 2023 CNY (¥)
SIGNIFICANT ACCOUNTING POLICIES
Convenience translation	6.9931
Expected credit loss for accounts receivables	¥ 700	¥ 3,600	¥ 1,700
Provision/(reversal) for expected credit losses	(700)	3,400	2,400
Impairment of long-lived asset	0	0	0
Impairment loss on goodwill	¥ 0	¥ 0	¥ 0

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Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

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- Definition

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

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Amount of expense related to credit loss from transactions other than loan and lease transactions.

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