RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of compensation of key management personnel of group) (Details) ¥ in Thousands, $ in Thousands	6 Months Ended
Jun. 30, 2023 USD ($)	Jun. 30, 2023 CNY (¥)	Jun. 30, 2022 CNY (¥)
Notes and other explanatory information [abstract]
Wages, salaries and allowances	$ 79	¥ 575	¥ 618
Housing subsidies	1	7	11
Contribution to pension plans	4	28	43
Total Compensation of key management personnel	$ 84	¥ 610	¥ 672

No definition available.

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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 2023-01-01
-Paragraph 17
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-URIDate 2023-03-23

+ 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
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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 2023-01-01
-Paragraph 17
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- References

No definition available.

+ Details

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