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Additions and Returns of Product Rights - Narrative (Details)
 1 Months Ended 9 Months Ended 12 Months Ended
Jan. 03, 2022
USD ($)
Nov. 30, 2018
USD ($)
Nov. 30, 2016
USD ($)
shares
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
installment
Dec. 31, 2020
USD ($)
installment
Dec. 31, 2019
USD ($)
Jul. 12, 2022
USD ($)
shares
Jul. 31, 2020
USD ($)
Business Acquisition [Line Items]                    
Payment to acquire business upon closing       $ 13,500,000 $ 0          
Goodwill       1,932,876   $ 882,000        
Financial consideration, payment period               2 years    
Financial consideration, number of installments | installment           4 4      
Financial consideration received in exchange for product license rights, installment payments             $ 3,000,000      
Clinigen                    
Business Acquisition [Line Items]                    
Financial consideration received in exchange for product license rights               $ 5,000,000    
Discontinued operations income           $ 2,000,000        
Kyowa Kirin | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement                    
Business Acquisition [Line Items]                    
Upfront payment $ 13,500,000                  
Sales milestone payments, maximum $ 3,500,000                  
Sales milestone payments, expected       1,500,000            
Kyowa Kirin | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Maximum                    
Business Acquisition [Line Items]                    
Tiered royalty, percent 10.00%                  
Nordic Group B.V. | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement                    
Business Acquisition [Line Items]                    
Milestone payment receivable                 $ 1,000,000  
Milestone payment credit due                 $ 1,000,000  
Nordic Group B.V. | Restricted Stock | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement                    
Business Acquisition [Line Items]                    
Restricted shares receivable (in shares) | shares                 180,000  
Vibativ                    
Business Acquisition [Line Items]                    
Payment to acquire business upon closing   $ 20,000,000                
Other Payments to Acquire Businesses   $ 5,000,000                
Percentage of tiered royalty payments (up to)   20.00%                
Tiered royalty payment, threshold   $ 2,500,000                
Additional liability       4,819,139   $ 6,515,627        
Current portion of the contingent consideration liability       1,900,000            
Noncurrent portion of the contingent consideration liability       3,000,000            
Methotrexate                    
Business Acquisition [Line Items]                    
Payment to acquire business upon closing     $ 100,000              
Additional liability             $ 1,000,000     $ 1,000,000
Liability recorded     $ 900,000              
Vested common stock, value       900,000            
Methotrexate | Restricted Stock                    
Business Acquisition [Line Items]                    
Unvested restricted shares (in shares) | shares     180,000              
Sancuso                    
Business Acquisition [Line Items]                    
Other Payments to Acquire Businesses $ 1,200,000                  
Additional liability 3,946,716     4,535,645            
Current portion of the contingent consideration liability       1,900,000            
Noncurrent portion of the contingent consideration liability       $ 2,600,000            
Prepaid expenses 300,000                  
Inventory 5,200,000                  
Goodwill 1,000,000                  
Intangible assets $ 12,100,000