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v3.20.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Estimated Useful Life) (Details) | 12 Months Ended
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Dec. 31, 2019
Buildings [Member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated useful lives | 8 - 35 years
Machinery and equipment [Member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated useful lives | 3 - 15 years
Motor vehicles [Member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated useful lives | 4 - 8 years

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- Definition The useful lives or depreciation rates used for property, plant and equipment. [Refer: Property, plant and equipment] + References No definition available. + Details
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Namespace Prefix: | chnr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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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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Namespace Prefix: | ifrs-full_
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Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |