Repayments of short term debt including accrued interest and exit fee.

No definition available.

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

- Definition

Short term borrowing amount equal to exit fee percentage.

+ References

No definition available.

+ Details

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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Balance Type:	debit
Period Type:	instant

- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

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Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Details

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Short-Term Borrowings - Related Party - Additional Information (Details)		12 Months Ended
	Jun. 08, 2021 USD ($) Day	Dec. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)	Aug. 01, 2021	Jul. 31, 2021	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Cash and cash equivalents		$ 37,240,000	$ 48,039,000			$ 54,311,000
Loan Agreement \| CV Starr
Debt Instrument [Line Items]
Loan outstanding principal amount	$ 5,000,000
Loan interest rate				10.00%	8.00%
Convertible promissory note due date		Jun. 08, 2022
Short term borrowings exit fee	2.00%
Cash and cash equivalents	$ 5,000,000
Number of consecutive business days \| Day	5
Additional borrowings under the loan agreement	$ 5,000,000
Repayments of short term debt including accrued interest and exit fee		$ 5,146,000