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EQUITY (Schedule of Issued Capital) (Details) ¥ in Thousands, $ in Thousands | Dec. 31, 2020 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
--- | --- | --- | --- | ---
Authorized: |  |  |  |
Authorized 10,000,000 preferred shares, no par value | ¥ |  |  |  |
Authorized 200,000,000 common shares, no par value | ¥ |  |  |  |
Issued and fully paid: |  |  |  |
33,988,082 (2018 and 2019: 24,910,916) common shares, no par | ¥ |  | ¥ 390,297 | ¥ 312,081 | ¥ 312,081
USD [Member] |  |  |  |
Authorized: |  |  |  |
Authorized 10,000,000 preferred shares, no par value | $ |  |  |  |
Authorized 200,000,000 common shares, no par value | $ |  |  |  |
Issued and fully paid: |  |  |  |
33,988,082 (2018 and 2019: 24,910,916) common shares, no par | $ | $ 59,764 |  |  |

X
- Definition Amount of authorized share capital. + References No definition available. + Details
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Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Ordinary shares, no par value. + References No definition available. + Details
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Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of issued and paid up share capital. + References No definition available. + Details
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Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of ordinary shares. + References No definition available. + Details
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Namespace Prefix: | chnr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CurrencyAxis=currency_USD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |