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NOTES TO THE CONSOLIDATED STATEMENTS OF CASH FLOWS (Schedule of Cash Outflow for Leases) (Details) - 12 months ended Dec. 31, 2019 ¥ in Thousands, $ in Thousands | USD ($) | CNY (¥)
--- | --- | ---
Statement Line Items [Line Items] |  |
Within operating activities | ¥ |  | ¥ (46)
Within financing activities | ¥ |  | (1,060)
Total cash outflow for leases | ¥ |  | ¥ (1,106)
USD [Member] |  |
Statement Line Items [Line Items] |  |
Within operating activities | $ | $ (7) |
Within financing activities | $ | (153) |
Total cash outflow for leases | $ | $ (160) |

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- Definition The cash outflow for leases with financing activities. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The cash outflow for leases with operating activities. + References No definition available. + Details
Name: | chnr_CashOutflowForLeasesWithinOperatingActivities
Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | chnr_IfrsStatementLineItems
Namespace Prefix: | chnr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The cash outflow for leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_g&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_CashOutflowForLeases
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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