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ASSET RETIREMENT OBLIGATIONS (Schedule of Asset Retirement Obligations) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 CNY (¥)
ForeignCurrencyLineItems [Line Items] |  |  |  |
At January 1, | ¥ |  | ¥ 5,302 |  | ¥ 4,967
Accretion expenses | ¥ |  | 60 |  | 311
Exchange adjustment | ¥ |  | (24) |  | 24
Disposal of subsidiaries | ¥ |  | (5,338) |  |
At December 31, | ¥ |  |  |  | ¥ 5,302
USD [Member] |  |  |  |
ForeignCurrencyLineItems [Line Items] |  |  |  |
At January 1, | $ | $ 815 |  | $ 763 |
Accretion expenses | $ | 9 |  | 48 |
Exchange adjustment | $ | (4) |  | 4 |
Disposal of subsidiaries | $ | (820) |  |  |
At December 31, | $ |  |  | $ 815 |

X
- Definition Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. + References No definition available. + Details
Name: | chnr_AssetRetirementObligationAccretionExpenses
Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of foreign currency translation gain (loss) which decreases (increases) asset retirement obligations. + References No definition available. + Details
Name: | chnr_AssetRetirementObligationForeignCurrencyTranslationGainLosses
Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Non-current portion of the carrying value of the obligation (known or estimated) arising from requirements to perform activities under asset retirement obligations or to remediate one or more sites, payable in twelve months or in the next operating cycle, if longer. + References No definition available. + Details
Name: | chnr_AssetRetirementObligations
Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition The gains (losses) recognised in association with the loss of control over a subsidiary, which are attributable to the former controlling interest. + References No definition available. + Details
Name: | chnr_GainsLossesRecognisedWhenControlInSubsidiaryIsLost1
Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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