Name:	cntg_NumberOfOutstandingShareOptionsAbstract
Namespace Prefix:	cntg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

" The number of share options vested in a share-based payment arrangement."

No definition available.

Name:	cntg_NumberOfShareOptionsVestedInShareBasedPaymentArrangement
Namespace Prefix:	cntg_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The number of common shares per share options granted in a share-based payment arrangement.

No definition available.

Name:	cntg_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfCommonSharesPerOptionGranted
Namespace Prefix:	cntg_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

Name:	cntg_WeightedAverageExercisePriceOfShareOptionsAbstract
Namespace Prefix:	cntg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The weighted average exercise price of share options cancelled in share based payment arrangement.

No definition available.

Name:	cntg_WeightedAverageExercisePriceOfShareOptionsCancelledInShareBasedPaymentArrangement
Namespace Prefix:	cntg_
Data Type:	xbrli:decimalItemType
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Period Type:	instant

"The weighted average exercise price of share options vested in a share-based payment arrangement."

No definition available.

Name:	cntg_WeightedAverageExercisePriceOfShareOptionsVestedInShareBasedPaymentArrangement
Namespace Prefix:	cntg_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

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.

No definition available.

Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
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Period Type:	duration

The number of share options outstanding in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2019-01-01
-Paragraph 45
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_d&doctype=Standard
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2019-01-01
-Paragraph 45
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-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_b_i&doctype=Standard
-URIDate 2019-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
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-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_b_vi&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_NumberOfOutstandingShareOptions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

The number of share options exercisable in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-IssueDate 2019-01-01
-Paragraph 45
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-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_b_vii&doctype=Standard
-URIDate 2019-03-27

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Namespace Prefix:	ifrs-full_
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Period Type:	instant

The number of share options exercised in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-URIDate 2019-03-27

Name:	ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
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Period Type:	duration

The number of share options granted in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2019-01-01
-Paragraph 45
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Name:	ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
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The weighted average exercise price of share options exercisable in a share-based payment arrangement. [Refer: Weighted average [member]]

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Namespace Prefix:	ifrs-full_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

The weighted average exercise price of share options exercised in a share-based payment arrangement. [Refer: Weighted average [member]]

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	num:perShareItemType
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Period Type:	duration

The weighted average exercise price of share options granted in a share-based payment arrangement. [Refer: Weighted average [member]]

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	num:perShareItemType
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The weighted average exercise price of share options outstanding in a share-based payment arrangement. [Refer: Weighted average [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2019-01-01
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-URIDate 2019-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

The weighted average remaining contractual life of outstanding share options. [Refer: Weighted average [member]]