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RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Compensation of Key Management Personnel of Group) (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 (¥)
Disclosure of transactions between related parties [line items] |  |  |  |
Wages, salaries and allowances | ¥ |  | ¥ 552 | ¥ 629 | ¥ 580
Housing subsidies | ¥ |  | 15 | 16 | 16
Contribution to pension plans | ¥ |  | 71 | 75 | 75
Total Compensation of key management personnel | ¥ |  | ¥ 638 | ¥ 720 | ¥ 671
USD [Member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Wages, salaries and allowances | $ | $ 85 |  |  |
Housing subsidies | $ | 2 |  |  |
Contribution to pension plans | $ | 11 |  |  |
Total Compensation of key management personnel | $ | $ 98 |  |  |

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- Definition The amount of housing subsidies to key management personnel in the form of employment benefits. + References No definition available. + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2020-01-01 -Paragraph 17 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2020-en-r&anchor=para_17&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of compensation to key management personnel in the form of post-employment benefits. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2020-01-01 -Paragraph 17 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2020-en-r&anchor=para_17_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of compensation to key management personnel in the form of short-term employee benefits. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2020-01-01 -Paragraph 17 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2020-en-r&anchor=para_17_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Details
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