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v3.20.2

Earn-out Milestone Liability - Schedule of Risk Adjustment Assessment (Details) | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Risk-adjustment Assessment of achieving each Milestone | 80.00% | 80.00% | 80.00% | 80.00% | 80.00% | 80.00%
Discount Rate | 9.00% | 9.00% | 9.00% | 9.00% | 9.00% | 9.00%
Estimated Time to Achieve |  |  |  |  |  | 1 year 2 months 30 days
Minimum [Member] |  |  |  |  |  |
Estimated Time to Achieve | 6 months 14 days | 9 months | 4 months 17 days | 11 months 1 day | 1 year 1 month 13 days |
Maximum [Member] |  |  |  |  |  |
Estimated Time to Achieve | 1 year 6 months 14 days | 1 year 9 months | 1 year 4 months 17 days | 1 year 11 months 1 day | 2 years 1 month 13 days |

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- Definition Discount rate on milestone liabilites. + References No definition available. + Details
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- Definition Estimated time to achieve milestone liability. + References No definition available. + Details
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Balance Type: | na
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- Definition Risk-adjustment assessment of achieving each milestone. + References No definition available. + Details
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Namespace Prefix: | CLSN_
Data Type: | num:percentItemType
Balance Type: | na
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- Details
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- Details
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Namespace Prefix: |
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