XML 60 R51.htm IDEA: XBRL DOCUMENT v3.22.1
Stockholders’ Equity (Details Narrative) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 10, 2022
Mar. 31, 2021
Mar. 19, 2021
Jan. 22, 2021
Dec. 04, 2018
Jan. 31, 2021
Sep. 30, 2018
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Mar. 03, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Shelf registration statement amount     $ 100,000,000       $ 75,000,000          
Reverse stock split, description               On February 28, 2022, the Company effected a 15-for-1 reverse stock split of its common stock which was made effective for trading purposes as of the commencement of trading on March 1, 2022. As of that date, each 15 shares of issued and outstanding common stock and equivalents was consolidated into one share of common stock. All shares have been restated to reflect the effects of the 15-for-1 reverse stock split. In addition, at the market open on March 1, 2022, the Company’s common stock started trading under a new CUSIP number 15117N602 although the Company’s ticker symbol, CLSN, remained unchanged        
Stockholders equity note changes in capital structure, description               To continue listing on The NASDAQ Capital Market, which requires that the Company comply with the applicable listing requirements under NASDAQ Marketplace Rules, which requirements include, among others, a minimum bid price of at least $1.00 per share. On December 2, 2021, the Company received a letter from NASDAQ indicating that the closing bid price of the Company’s Common Stock fell below $1.00 per share for the previous 30 consecutive business days, and that the Company was therefore not in compliance with the minimum bid price requirement for continued inclusion on The NASDAQ Capital Market. The Company had 180 calendar days, until May 31, 2022, to regain compliance with this requirement, which occurs when the closing bid price of the Company’s Common Stock is at least $1.00 per share for a minimum of ten consecutive business days during the 180-day compliance period        
Reverse stock split common stock outstanding               5,770,467        
Common stock, shares outstanding               5,770,467   5,770,516    
Proceeds from issuance of common stock               $ 38,943,478      
Share price $ 285                      
Preferred stock, shares issued               0   0    
Preferred stock, par value $ 300             $ 0.01   $ 0.01    
Proceeds from issuance of preferred stock $ 14,250,000                      
Common Stock, Par or Stated Value Per Share               $ 0.01   $ 0.01    
Proceeds from issuance under placement               $ 1,000,000        
Preferred stock, stated value                       $ 300
Preferred stock, shares outstanding               0   0    
Interest expense on preferred stock               $ (4,551,567)      
Series A Convertible Redeemable Preferred Stock [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Share price $ 300                      
Preferred stock, shares issued 50,000                      
Preferred stock, par value $ 0.01                      
Proceeds from issuance of preferred stock $ 28,500,000                      
Preferred stock, conversion price $ 13.65                      
Conversion of stock, shares issued 1,098,901                      
Common Stock, Par or Stated Value Per Share $ 13.65                      
Preferred stock, shares outstanding                       50,000
Series B Convertible Redeemable Preferred Stock [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Share price $ 300                      
Preferred stock, shares issued 50,000                      
Preferred stock, par value $ 0.01                      
Preferred stock, conversion price $ 15.00                      
Conversion of stock, shares issued 1,000,000                      
Preferred stock, voting rights right to cast 3,000 votes per share of Series B Preferred Stock on the Reverse Stock Split                      
Common Stock, Par or Stated Value Per Share $ 15.00                      
Preferred stock, shares outstanding                       50,000
Series A & B Preferred Stock [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Proceeds from issuance under placement               1,110,000        
Interest expense on preferred stock               4,551,567        
Shares issued, redemption value               3,000,000        
Legal fees               $ 441,567        
Capital on DemandTM Sales Agreement [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Less than 12 months, unrealized gains, fair value         $ 16,000,000.0              
Capital on Demand Agreement [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Shares issued, shares                   500,000 300,000  
Proceeds from issuance of common stock                   $ 6,900,000 $ 6,200,000  
Securities Purchase Agreement [Member] | January 2021 Registered Direct Offering [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Shares issued, shares       1,728,395                
Proceeds from issuance of common stock       $ 35,000,000                
Share price       $ 20.25                
Placement agent fee description           In connection with the January 2021 Offering, the Company entered into a placement agent agreement with A.G.P./Alliance Global Partners (“AGP,” and together with Brookline Capital Markets, the “January 2021 Placement Agents”) pursuant to which the Company agreed to pay the January 2021 Placement Agents a cash fee equal to 7% of the aggregate gross proceeds raised from the sale of the securities sold in the January 2021 Offering and reimburse the January 2021 Placement Agents for certain of their expenses in an amount not to exceed $82,500            
Securities Purchase Agreement [Member] | March 2021 Registered Direct Offering [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Shares issued, shares   769,230                    
Proceeds from issuance of common stock   $ 15,000,000                    
Share price   $ 19.50             $ 19.50      
Placement agent fee description   Placement Agent Agreement”) with AGP, as lead placement agent (together with JonesTrading Institutional Services LLC and Brookline Capital Markets, a division of Arcadia Securities, LLC, serving as co-placement agents, the “March 2021 Placement Agents”), pursuant to which the Company agreed to pay the March 2021 Placement Agents an aggregate cash fee equal to 7% of the aggregate gross proceeds raised from the sale of the securities sold in the offering and reimburse the Placement Agents for certain of their expenses in an amount not to exceed $82,500                    
Maximum [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Common stock, shares outstanding               6,600,000        
Warrants issued               2,500,000        
Proceeds from issuance under placement               $ 110,000        
Minimum [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Common stock, shares outstanding               400,000        
Warrants issued               200,000        
Common Stock [Member]                        
Accumulated Other Comprehensive Income (Loss) [Line Items]                        
Reverse stock split common stock outstanding               86,557,736        
Shares issued, shares                 2,206,272