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OTHER NON-CURRENT ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2018
Other Assets, Noncurrent Disclosure [Abstract] |
Schedule of Other Non-Current Assets |
|  | As at December 31, |
|  | 2017 |  |  | 2018 |  |  | 2018 |
|  | RMB |  |  | RMB |  |  | US$ |
Deferred costs |  |  | 1,066 |  |  |  | 267 |  |  |  | 39 |
Deposits – long-term* |  |  | 20,747 |  |  |  | 2,719 |  |  |  | 395 |
Others** |  |  | 8,579 |  |  |  | 4,890 |  |  |  | 709 |
|  |  | 30,392 |  |  |  | 7,876 |  |  |  | 1,143 |
* On June 21, 2011, the Group provided interest-free financing amounting to RMB23,608 to Changhai Hospital, a third party, for the purchase of a robotic radiosurgery system, impairment losses of RMB 11,527 was provided for the remaining balances as of December 31, 2018. ** For the years ended December 31, 2017 and 2018, no impairment loss were provided for the balances.

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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