Name:	celu_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesRemaingAvailableForGrant
Namespace Prefix:	celu_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

No definition available.

Name:	celu_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantInPeriodWeightedAverageExercisePrice
Namespace Prefix:	celu_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	duration

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the expected term of a non vested share or option award issued to other than an employee.

No definition available.

Name:	celu_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodExpectedDividendRate2
Namespace Prefix:	celu_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

Name:	celu_StockBasedCompensationDetailsLineItems
Namespace Prefix:	celu_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Stock option exercise price.

No definition available.

Name:	celu_StockOptionExercisePrice
Namespace Prefix:	celu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Data Type:	xbrli:durationItemType
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Amount of cost to be recognized for option under share-based payment arrangement.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Per share or unit weighted-average intrinsic value of award vested under share-based payment arrangement. Excludes share and unit options.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Number of options vested.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Purchase price of common stock expressed as a percentage of its fair value.

No definition available.