XML 37 R26.htm IDEA: XBRL DOCUMENT v3.25.4

FAIR VALUE (Tables)

12 Months Ended

Dec. 31, 2025

FAIR VALUE

Schedule of financial instruments measured at fair value on a recurring basis

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​ ​ ​

Balance

​ ​ ​

Level 1

​ ​ ​

Level 2

​ ​ ​

Level 3

December 31, 2025

​

​

​

​

​

​

​

​

​

​

​

​

Cash and cash equivalents

​

$

13,196,033

​

$

13,196,033

​

$

—

​

$

—

Total assets

​

$

13,196,033

​

$

13,196,033

​

$

—

​

$

—

​

​

​

​

​

​

​

​

​

​

​

​

​

Warrant liability

​

$

226,000

​

$

—

​

$

—

​

$

226,000

Total liabilities

​

$

226,000

​

$

—

​

$

—

​

$

226,000

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2024

​

​

​

​

​

​

​

​

Cash and cash equivalents

​

$

23,288,607

​

$

23,288,607

​

$

—

​

$

—

Total assets

​

$

23,288,607

​

$

23,288,607

​

$

—

​

$

—

​

​

​

​

​

​

​

​

​

​

​

​

​

Warrant liability

​

$

1,718,000

​

$

—

​

$

—

​

$

1,718,000

Total liabilities

​

$

1,718,000

​

$

—

​

$

—

​

$

1,718,000

July 2024 Warrants

FAIR VALUE

Schedule of modified option pricing assumptions and assumptions used upon issuance

​

​	​	​	​	​	​
​	​ ​ ​	December 31,	​ ​ ​	December 31,
​	​	2025	​	2024
Volatility		110.00-117.00	%	80.60-104.00	%
Risk-free interest rate		3.50-3.80	%	3.50-4.20	%
Expected life (years)		3.30-4.10		0.50-4.80	​
Dividend		0	%	0	%

September 2023 Warrants

FAIR VALUE

Schedule of modified option pricing assumptions and assumptions used upon issuance

​

​	​	​	​	​	​
​	​ ​ ​	December 31,	​ ​ ​	December 31,
​	​	2025	​	2024	​
Volatility		100.17-125.50	%	105	%
Risk-free interest rate		3.55-3.89	%	4.20-4.30	%
Expected life (years)		2.69-3.44		0.80-4.20	​
Dividend		0	%	0	%

October 2022 Warrants

FAIR VALUE

Schedule of modified option pricing assumptions and assumptions used upon issuance

​

​	​	​	​	​	​
​	​ ​ ​	December 31,	​ ​ ​	December 31,
​	​	2025	​	2024	​
Volatility		147.20	%	117.50	%
Risk-free interest rate		3.47	%	4.27	%
Expected life (years)		1.80		2.80	​
Dividend		0	%	0	%

Schedule of changes in the fair market value of the warrants

​

​	​	​	​	​	​	​
​	​ ​ ​	2025		​ ​ ​	2024
Beginning warrant fair value	​	$	1,718,000	​	$	13,131,691
Change in warrant fair value	​	​	(317,055)	​	​	(14,778,015)
Issuance of July 2024 inducement warrants	​	​	—	​	​	12,000,000
Settlement of warrants to equity	​	​	(1,174,945)	​	​	(7,410,000)
Exercise of October 2022 warrants	​	​	—	​	​	(1,225,676)
Ending warrant fair value	​	$	226,000	​	$	1,718,000

​

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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 100
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 103
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-103

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=clrb_July2024WarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=clrb_September2023WarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=clrb_October2022WarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: