Annual report pursuant to Section 13 and 15(d)

Related Party Agreements (Details)

v3.20.1
Related Party Agreements (Details)
 1 Months Ended 12 Months Ended
Jan. 01, 2020
Mar. 29, 2019
shares
Jan. 01, 2019
Jan. 01, 2017
USD ($)
shares
Jul. 31, 2016
Jul. 27, 2016
Jul. 26, 2016
USD ($)
shares
Jul. 22, 2016
May 31, 2019
USD ($)
shares
Apr. 30, 2019
USD ($)
shares
Mar. 29, 2019
USD ($)
Apr. 30, 2017
item
Jul. 31, 2016
shares
Dec. 31, 2019
USD ($)
item
shares
Dec. 31, 2018
USD ($)
shares
Related Party Transaction [Line Items]                              
Proceeds from loan                     $ 15,000,000        
Preferred stock voting rights multiplier             1.1                
Stock dividend (as a percent) 2.50%   2.00%   2.50%                    
Preferred Stock, Dividend Rate, Percentage 2.50%   2.00%   2.50%                    
At The Market Offering                              
Related Party Transaction [Line Items]                              
Proceeds from issuance of common shares                           $ 22,000,000  
Public Offering                              
Related Party Transaction [Line Items]                              
Proceeds from issuance of common shares                   $ 29,500,000          
Fortress Biotech, Inc                              
Related Party Transaction [Line Items]                              
Share of equity or debt financing used to calculate equity fee or stock issuance to maintain parity (as a percent)               2.50%              
Fortress Biotech, Inc | At The Market Offering                              
Related Party Transaction [Line Items]                              
Share of equity or debt financing used to calculate equity fee or stock issuance to maintain parity (as a percent)                   2.50%          
Issuance of common shares - Founders Agreement (in shares) | shares                   87,656          
Expenses from related party transaction                           500,000  
Proceeds from issuance of common shares                   $ 22,500,000          
Fortress Biotech, Inc | Issuances Related To Debt Financing                              
Related Party Transaction [Line Items]                              
Share of equity or debt financing used to calculate equity fee or stock issuance to maintain parity (as a percent)   2.50%                          
Issuance of common shares - Founders Agreement (in shares) | shares   108,069                          
Expenses from related party transaction                           400,000  
Fortress Biotech, Inc | Public Offering                              
Related Party Transaction [Line Items]                              
Share of equity or debt financing used to calculate equity fee or stock issuance to maintain parity (as a percent)                 2.50%            
Issuance of common shares - Founders Agreement (in shares) | shares                 197,656            
Expenses from related party transaction                           $ 800,000  
Proceeds from issuance of common shares                 $ 31,600,000            
Common Shares                              
Related Party Transaction [Line Items]                              
Issuance of common shares - Founders Agreement (in shares) | shares                           709,314 834,756
Number of shares converted | shares                           154,615  
Class A Preferred Shares                              
Related Party Transaction [Line Items]                              
Issuance of common shares - Founders Agreement (in shares) | shares                         250,000 0 0
Number of shares converted | shares                           0  
Shares issuable on conversion, per share converted | shares             1                
Class A Common Shares                              
Related Party Transaction [Line Items]                              
Issuance of common shares - Founders Agreement (in shares) | shares                           0 0
Number of shares converted | shares                           (154,615)  
Maximum                              
Related Party Transaction [Line Items]                              
Expenses from related party transaction                     $ 13,000,000        
Fortress Biotech, Inc                              
Related Party Transaction [Line Items]                              
Expenses from related party transaction                           $ 500,000 $ 500,000
Proceeds from loan             $ 2,000,000                
Founders agreement term             15 years                
Agreement renewal term           1 year 1 year                
Paid in kind dividend, period prior to payment date for measuring ownership             1 day                
Equity fee, period for payment after financing                           5 days  
Equity fee payable in shares (as a percent)                           2.50%  
Cash fee (as a percent)                           4.50%  
Cash fee, period for payment                           90 days  
Change in control fee, multiplier | item                           5  
Change in control fee, measurement period                           12 months  
Change in control fee, specified rate component                           4.50%  
Annual consulting fee                           $ 500,000  
Consulting fee when net assets exceed threshold                           1,000,000  
Net assets threshold                           100,000,000  
Option award, number of related party recipients | item                       2      
Fortress Biotech, Inc | Common Class B                              
Related Party Transaction [Line Items]                              
Number of shares converted | shares             7,250,000                
Fortress Biotech, Inc | Common Shares                              
Related Party Transaction [Line Items]                              
Number of shares issued in conversion | shares             7,000,000                
Fortress Biotech, Inc | Class A Preferred Shares                              
Related Party Transaction [Line Items]                              
Number of shares issued in conversion | shares             250,000                
Director [Member]                              
Related Party Transaction [Line Items]                              
Expenses from related party transaction                           102,000 84,000
Annual consulting fee                           50,000  
Value of shares granted as compensation                           $ 52,000 $ 34,000
Number of shares granted as compensation | shares                           34,000 20,000
Director [Member] | Maximum                              
Related Party Transaction [Line Items]                              
Value of shares granted as compensation                           $ 50,000  
Number of shares granted as compensation | shares                           10,000  
Board of Directors Chairman [Member]                              
Related Party Transaction [Line Items]                              
Expenses from related party transaction                           $ 105,000 $ 84,000
Annual consulting fee       $ 60,000                      
Value of shares granted as compensation                           $ 45,000 $ 34,000
Number of shares granted as compensation | shares                           34,000 20,000
Board of Directors Chairman [Member] | Maximum                              
Related Party Transaction [Line Items]                              
Value of shares granted as compensation       $ 50,000                      
Number of shares granted as compensation | shares       10,000