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ORGANIZATION AND BASIS OF PRESENTATION (Narrative) (Details) $ / shares in Units, ¥ in Thousands, $ in Thousands |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 09, 2015 USD ($) shares | Dec. 16, 2009 CNY (¥) shares | Dec. 16, 2009 USD ($) $ / shares shares | Nov. 30, 2016 shares | Sep. 29, 2016 CNY (¥) shares | Sep. 29, 2016 USD ($) shares | Dec. 31, 2016 CNY (¥) shares | Dec. 31, 2016 USD ($) shares | Dec. 31, 2015 CNY (¥) | Dec. 31, 2014 USD ($) | Sep. 26, 2016 | Jan. 27, 2016
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total consideration |  |  |  |  | ¥ 41,670 | $ 6,002 | ¥ 100,000 | $ 14,403 |  |  |  |
Capital injected amount |  |  |  |  |  |  |  |  | ¥ 40,728 |  |  |
Beijing Century Friendship Science and Technology Development Co., Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Beijing Century Friendship Science and Technology Development Co., Ltd. [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  |  | 1,483,000 | 926,000 | 926,000 | 6,666,666 | 6,666,666 |  |  |  |
Stock Repurchased During Period, Shares |  |  |  |  |  |  | 10,000 | 10,000 |  |  |  |
Sale of Stock, Percentage of Ownership after Transaction |  |  |  |  |  |  | 85.34% | 85.34% |  |  |  |
Beijing Proton Medical Center Co Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of equity interests acquired |  |  |  |  |  |  |  |  |  |  |  | 80.00%
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  |  |  |  |  | 55.00%
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  |  |  |  |  |  |  | 80.00%
American Depositary Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Initial public offering of ordinary shares, shares |  | 12,000,000 | 12,000,000 |  |  |  |  |  |  |  |  |
Price per share | $ / shares |  |  | $ 11.0 |  |  |  |  |  |  |  |  |
Initial public offering of ordinary shares |  | ¥ 813,938 | $ 119,211 |  |  |  |  |  |  |  |  |
CCM (HK) [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Capital injected amount | $ | $ 40,728 |  |  |  |  |  |  |  |  |  |  |
CCM (HK) [Member] | Gopher [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Initial public offering of ordinary shares, shares | 61,302,441 |  |  |  |  |  |  |  |  |  |  |
Initial public offering of ordinary shares | $ | $ 7,859 |  |  |  |  |  |  |  |  |  |  |
Percentage of equity interests acquired | 14.29% |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 14.29% |  |  |  |  |  |  |  |  |  |  |
CCM (HK) [Member] | Asendium [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Initial public offering of ordinary shares, shares | 366,685,949 |  |  |  |  |  |  |  |  |  |  |
Initial public offering of ordinary shares | $ | $ 47,011 |  |  |  |  |  |  |  |  |  |  |
Percentage of equity interests acquired | 85.71% |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 85.71% |  |  |  |  |  |  |  |  |  |  |
SHC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of equity interests acquired | 70.00% |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 70.00% |  |  |  |  |  |  |  |  |  |  |
SHC [Member] | Gopher [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of equity interests acquired | 10.00% |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 10.00% |  |  |  |  |  |  |  |  |  |  |
Shanghai Huifu Technology Development Co., Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of equity interest sold |  |  |  |  |  |  |  |  |  |  | 99.00% |

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