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CONCENTRATION OF RISKS (Narrative) (Details)	12 Months Ended
	Dec. 31, 2020 customer USD ($)	Dec. 31, 2019 customer USD ($)	Dec. 31, 2018 customer USD ($)
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%
Foreign currency exchange rate risk
Appreciation and depreciation of the RMB against US dollar (as a percent)	6.30%	1.30%	5.70%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member]
Concentration Risk [Line Items]
Number of customers | customer	5	5	5
Concentration risk percentage	25.85%	34.60%	35.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member]
Concentration Risk [Line Items]
Concentration risk percentage	95.00%	97.00%	90.00%
Number of suppliers | $	5	5	5

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

No definition available.

+ Details

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Namespace Prefix:	ccm_
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Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of customers.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of suppliers.

+ References

No definition available.

+ Details

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Namespace Prefix:	ccm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents percentage of appreciation and depreciation of the RMB against US dollar.

+ References

No definition available.

+ Details

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Balance Type:	na
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X

- 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

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- References

No definition available.

+ Details

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- Details

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X

- Details

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X

- Details

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X

- Details

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