Annual report pursuant to Section 13 and 15(d)

Related Party Agreements (Narrative) (Details)

v3.23.1
Related Party Agreements (Narrative) (Details)
 12 Months Ended
Jan. 01, 2017
USD ($)
shares
Jul. 26, 2016
USD ($)
shares
Jul. 22, 2016
Mar. 13, 2015
Dec. 31, 2022
USD ($)
item
shares
Dec. 31, 2021
USD ($)
shares
Mar. 04, 2022
Dec. 31, 2016
shares
Related Party Transaction [Line Items]                
Common stock, shares issuable | shares         2,807,008 2,536,607    
Preferred stock voting rights multiplier   1.1            
Proceeds from debt issuance         $ 30,000,000 $ 0    
Runway Debt Facility                
Related Party Transaction [Line Items]                
Warrant term             10 years  
Restricted Stock Awards [Member]                
Related Party Transaction [Line Items]                
Number of shares issued | shares         358,320 68,870    
At the Market Offering [Member]                
Related Party Transaction [Line Items]                
Proceeds from issuance of common shares         $ 6,600,000 $ 71,900,000    
Preferred Class A [Member]                
Related Party Transaction [Line Items]                
Shares issuable on conversion, per share converted | shares   1            
Fortress Biotech, Inc [Member]                
Related Party Transaction [Line Items]                
Proceeds from related party debt   $ 2,000,000.0            
Percentage of annual fees expense related to Management Services Agreement recorded in research and development expenses         50.00%      
Percentage of annual fees expense related to Management Services Agreement recorded in general and administrative expenses         50.00%      
Shares issued for services (in shares) | shares         196,952 576,157    
Common stock, shares issuable | shares           51,295    
Proceeds from issuance of common shares         $ 6,600,000 $ 71,900,000    
Common shares issuable recorded - Founders Agreement | shares           51,295    
Percentage of fully diluted equity         2.50% 2.50%    
Expenses from related party transaction         $ 1,000,000.0 $ 500,000    
Founders agreement term   15 years            
Agreement renewal term   1 year            
Stock dividend (as a percent)   2.50%            
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%      
MSA agreement term       5 years        
MSA agreement renewal term       5 years        
Annual consulting fee         $ 500,000      
Consulting fee when net assets exceed threshold         1,000,000.0      
Net assets threshold         100,000,000      
Preferred Stock, Dividend Rate, Percentage   2.50%            
Fortress Biotech, Inc [Member] | General and administrative [Member]                
Related Party Transaction [Line Items]                
Expenses from related party transaction         200,000 1,900,000    
Fortress Biotech, Inc [Member] | Class B Common Shares [Member]                
Related Party Transaction [Line Items]                
Common stock, shares issuable | shares               7,000,000
Fortress Biotech, Inc [Member] | Common Shares [Member]                
Related Party Transaction [Line Items]                
Number of shares issued in conversion | shares   7,000,000.0            
Fortress Biotech, Inc [Member] | Preferred Class A [Member]                
Related Party Transaction [Line Items]                
Percentage of fully diluted equity     2.50%          
Number of shares issued in conversion | shares   250,000            
Director [Member]                
Related Party Transaction [Line Items]                
Expenses from related party transaction         100,000 106,000    
Annual consulting fee         50,000      
Value of shares granted as compensation         $ 50,000 $ 56,000    
Director [Member] | Restricted Stock Awards [Member]                
Related Party Transaction [Line Items]                
Number of shares issued | shares         71,664 13,774    
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         $ 110,000 $ 116,000    
Annual consulting fee $ 60,000              
Value of shares granted as compensation         $ 50,000 $ 56,000    
Board of Directors Chairman [Member] | Restricted Stock Awards [Member]                
Related Party Transaction [Line Items]                
Number of shares issued | shares         71,664 13,774    
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