XML 92 R69.htm IDEA: XBRL DOCUMENT
v3.20.1

Celsion Employee Benefit Plans (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Postemployment Benefits [Abstract] |  |
Maximum annual contributions per employee, percent | 3.00% |
Matching contributions of employee | $ 105,999 | $ 105,999
Discretionary contribution |  | $ 181,999
Discretionary contribution, rate |  | 6.00%

X
- Definition Amount of discretionary contributions made by an employer as a percentage of each participants annual salary to a defined contribution plan. + References No definition available. + Details
Name: | CLSN_DefinedContributionPlanEmployerDiscretionaryContributionPercent
Namespace Prefix: | CLSN_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum amount the employee may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_PostemploymentBenefitsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration