XML 38 R28.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Stock-Based Compensation (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Stock Option Awards and Restricted Stock Grants | A summary of stock option awards and restricted stock grants for the nine-months ended September 30, 2018 is presented below:
|  | Stock Options |  | Restricted Stock Awards |  | Weighted Average
Equity Awards |  | Options Outstanding |  | Weighted Average Exercise Price |  | Non-vested Restricted Stock Outstanding |  | Weighted Average Grant Date Fair Value |  | Contractual Terms of Equity Awards (in years)
Equity awards outstanding at January 1, 2018 |  |  | 703,442 |  |  | $ | 10.34 |  |  |  | - |  |  | $ | - |  |  |  |  |
Equity awards granted |  |  | 2,629,004 |  |  | $ | 2.26 |  |  |  | 35,000 |  |  | $ | 2.71 |  |  |  |  |
Vested and issued |  |  | - |  |  | $ | - |  |  |  | (6,000 | ) |  | $ | 2.64 |  |  |  |  |
Equity awards forfeited, cancelled or expired |  |  | (113,701 | ) |  | $ | 40.23 |  |  |  | - |  |  | $ | - |  |  |  |  |
Equity awards outstanding at September 30, 2018 |  |  | 3,218,745 |  |  | $ | 2.67 |  |  |  | 29,000 |  |  | $ | 2.72 |  |  |  | 9.4 |
Aggregate intrinsic value of outstanding equity awards at September 30, 2018 |  | $ | 1,384,245 |  |  |  |  |  |  | $ | 1,700 |  |  |  |  |  |  |  |  |
Equity awards exercisable at September 30, 2018 |  |  | 1,677,998 |  |  | $ | 2.94 |  |  |  |  |  |  |  |  |  |  |  | 9.3 |
Aggregate intrinsic value of equity awards exercisable at September 30, 2018 |  | $ | 706,552 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Assumptions Used to Determine Fair Value of Options Granted | The Company used the following assumptions for determining the fair value of options granted under the Black-Scholes option pricing model:
|  | Nine Months Ended September 30, |
|  | 2018 |  |  | 2017 |
Risk-free interest rate |  |  | 2.82 – 3.02 | % |  |  | 2.21 | %
Expected volatility |  |  | 99.9 -102.1 | % |  |  | 90.4 | %
Expected life (in years) |  |  | 8.0 - 10.0 |  |  |  | 10.00 |
Expected dividend yield |  |  | - | % |  |  | - | %

X
- Definition The tabular disclosure for share-based compensation, stock options and restricted stock awards, activity. + References No definition available. + Details
Name: | CLSN_ScheduleOfSharebasedCompensationStockOptionsAndRestrictedStockAwardsActivityTableTextBlock
Namespace Prefix: | CLSN_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration