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SEGMENT REPORTING (Schedule of Segment Information) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2020 USD ($)
Segment reporting [Line Items] |  |  |  |  |
Revenues from external customers | ¥ 223,011 | $ 34,178 | ¥ 198,363 | ¥ 190,898 |
Cost of sales | (209,928) | (32,173) | (214,193) | (171,136) |
Gross profit (loss) | 13,083 | $ 2,005 | (15,830) | 19,762 |
Total assets | 5,334,538 |  | 4,297,445 |  | $ 817,554
Network Segment [Member] |  |  |  |  |
Segment reporting [Line Items] |  |  |  |  |
Revenues from external customers | 115,959 |  | 121,537 | 138,070 |
Cost of sales | (52,725) |  | (77,131) | (79,266) |
Gross profit (loss) | 63,234 |  | 44,406 | 58,804 |
Hospital [Member] |  |  |  |  |
Segment reporting [Line Items] |  |  |  |  |
Revenues from external customers | 107,052 |  | 76,826 | 52,828 |
Cost of sales | (157,203) |  | (137,062) | (91,870) |
Gross profit (loss) | (50,151) |  | (60,236) | ¥ (39,042) |
Operation segment [Member] |  |  |  |  |
Segment reporting [Line Items] |  |  |  |  |
Total assets | 5,334,538 |  | 4,297,445 |  | 817,554
Operation segment [Member] | Network Segment [Member] |  |  |  |  |
Segment reporting [Line Items] |  |  |  |  |
Total assets | 1,725,936 |  | 1,030,782 |  | 264,512
Operation segment [Member] | Hospital [Member] |  |  |  |  |
Segment reporting [Line Items] |  |  |  |  |
Total assets | ¥ 3,608,602 |  | ¥ 3,266,663 |  | $ 553,042

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