XML 76 R64.htm IDEA: XBRL DOCUMENT v3.22.1

SCHEDULE OF CHANGES IN EARN-OUT MILESTONE LIABILITY (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Earn-out Milestone Liability
Earn-out liabilities, beginning balance	$ 7,018,000	$ 5,717,709
Non-cash gain loss from the adjustment for the change in fair value	(1,622,000)	1,300,291
Earn-out liabilities, ending balance	$ 5,396,000	$ 7,018,000

X

- References

No definition available.

+ Details

Name:	CLSN_DisclosureEarnoutMilestoneLiabilityAbstract
Namespace Prefix:	CLSN_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Earn-out liabilities, beginning balance.

+ References

No definition available.

+ Details

Name:	CLSN_EarnoutMilestoneLiability
Namespace Prefix:	CLSN_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of gain (loss) from the change in the fair value of earn-out milestone liability.

+ References

No definition available.

+ Details

Name:	CLSN_GainLossFromChangeInFairValueOfEarnOutMilestoneLiability
Namespace Prefix:	CLSN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration