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CONDENSED FINANCIAL INFORMATION OF THE COMPANY (Schedule of Condensed Statements of Profit or Loss) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
Statement Line Items [Line Items] |  |  |  |  |
Administrative expenses | ¥ |  |  | ¥ (7,140) | ¥ (5,814) | ¥ (6,207)
Finance costs | ¥ | [1] |  | 60 | 62 | (5)
Fair value gains on financial asset at fair value through profit or loss | ¥ |  |  | 31,334 |  |
(Loss)/profit before income tax | ¥ |  |  | 24,163 | (5,645) | (6,176)
Income tax expense | ¥ |  |  | (18) | (16) | (26)
(Loss)/profit for the year | ¥ |  |  | 25,579 | (5,645) | (6,176)
USD [Member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Administrative expenses | $ |  | $ (1,093) |  |  |
Finance costs | $ | [1] | 9 |  |  |
Fair value gains on financial asset at fair value through profit or loss | $ |  | 4,798 |  |  |
(Loss)/profit before income tax | $ |  | 3,701 |  |  |
Income tax expense | $ |  | (3) |  |  |
(Loss)/profit for the year | $ |  | 3,918 |  |  |
Condensed [Member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Administrative expenses | ¥ |  |  | (5,243) | (3,814) | (3,794)
Finance costs | ¥ |  |  | (38) |  |
Interest income | ¥ |  |  |  | 1 |
Fair value gains on financial asset at fair value through profit or loss | ¥ |  |  | 31,334 |  |
(Loss)/profit before income tax | ¥ |  |  | 26,053 | (3,813) | (3,794)
Income tax expense | ¥ |  |  | (5,170) |  |
(Loss)/profit for the year | ¥ |  |  | ¥ 20,883 | ¥ (3,813) | ¥ (3,794)
Condensed [Member] | USD [Member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Administrative expenses | $ |  | (803) |  |  |
Finance costs | $ |  | (6) |  |  |
Interest income | $ |  |  |  |  |
Fair value gains on financial asset at fair value through profit or loss | $ |  | 4,798 |  |  |
(Loss)/profit before income tax | $ |  | 3,989 |  |  |
Income tax expense | $ |  | (792) |  |  |
(Loss)/profit for the year | $ |  | $ 3,197 |  |  |
[1] | Finance costs mainly represent bank charges, foreign currency exchange differences and interest on lease liabilities. The amounts of bank charges were CNY6.00, CNY2.00 and CNY7.00 (US$1.00); the foreign currency exchange differences amounted to negative CNY11.00, nil and positive CNY15.00; and interest on lease liabilities amounted to nil, CNY60.00 and CNY38.00 (US$6.00) for the years ended December 31, 2018, 2019 and 2020, respectively.

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