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LONG-TERM INVESTMENTS (Narrative) (Details) ¥ in Thousands, $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 28, 2019 | May 31, 2021 CNY (¥) | May 31, 2021 USD ($) | Dec. 31, 2021 CNY (¥) director | Dec. 31, 2021 USD ($) director | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2021 USD ($) | Jul. 22, 2019 | Dec. 31, 2018 | Dec. 31, 2017 USD ($) | Dec. 31, 2015
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal gain |  |  |  | ¥ 0 | $ 0 | ¥ 7,837 | ¥ 0 |  |  |  |  |  |
Long-term investments pledged to secure other borrowings |  |  |  | ¥ 167,044 |  | ¥ 166,870 |  |  | $ 26,213 |  |  |  |
Investment redeemed |  | ¥ 19,978 | $ 3,135 |  |  |  |  |  |  |  |  |  |
Tianjin Jiatai Entity Management limited Partnership [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  | ¥ 106,500 |  |  |  |  |
Tianjin Jiatai Group [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  |  |  | 90.00% |  |  |
CHS |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  | 10.00% |  | 10.00% |  |  | 10.00% |  |  |  |
SH MZJH |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Contributed |  |  |  |  |  |  | ¥ 34,540 |  |  |  |  |  |
Allcure Information |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  | 9.60% |  | 9.60% |  |  | 9.60% |  | 9.60% |  | 20.00%
Suzhou Shengshan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  | 5.15% |  |  |  | 5.41% | 8.13% |
Capital Contributed | $ |  |  |  |  |  |  |  |  |  |  |  | $ 10,000 |
Suzhou Shengshan Huiying Venture Capital Investment LLP. ("Suzhou Shengshan") |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  | 5.15% |  | 5.15% |  |  | 5.15% |  |  |  |
China Medical Services Holdings Limited ("CMS Holdings") | Zhejiang Marine |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage | 20.00% |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment Legal Interest Percentage | 20.00% |  |  |  |  |  |  |  |  |  |  |  |
Guangdong Hengjian | Aohua Technology |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  | 14.20% |  |  |  |  | 14.20% |  |  |  |
Consideration amount |  |  |  | ¥ 86,649 |  |  |  |  |  |  |  |  |
Number of total directors | director |  |  |  | 5 | 5 |  |  |  |  |  |  |  |
Number Of Directors Entitled To delegate In The Board | director |  |  |  | 2 | 2 |  |  |  |  |  |  |  |

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