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OTHER NON-CURRENT ASSETS - Narrative (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
OTHER NON-CURRENT ASSETS      
Other Asset Impairment Charges ¥ 361 $ 57 ¥ 0
Deposit - long term, impairment loss 19 $ 3 0
Advance to hospitals-non current, impairment loss ¥ 0   ¥ 52