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Company Overview and Basis of Presentation (Details)
3 Months Ended 16 Months Ended
Mar. 31, 2022
USD ($)
Mar. 26, 2021
USD ($)
Sep. 11, 2019
USD ($)
Mar. 31, 2022
USD ($)
product
shares
Mar. 31, 2021
USD ($)
shares
Mar. 31, 2022
USD ($)
shares
Subsidiary, Sale of Stock [Line Items]            
Number of products approved by Food and Drug Administration | product       5    
Licensed Product            
Subsidiary, Sale of Stock [Line Items]            
Number of products approved by Food and Drug Administration | product       4    
Stand Alone Product            
Subsidiary, Sale of Stock [Line Items]            
Number of products approved by Food and Drug Administration | product       1    
Equity Distribution Agreement            
Subsidiary, Sale of Stock [Line Items]            
Sale of stock, aggregate offering price     $ 25,000,000      
At-the-Market Offering, Amendment No. 1 | Maximum            
Subsidiary, Sale of Stock [Line Items]            
Sale of stock, aggregate offering price   $ 50,000,000        
At-the-Market Offering            
Subsidiary, Sale of Stock [Line Items]            
Number of shares issued in transaction (in shares) | shares       391,652 1,672,104 7,873,071
Consideration received on sale of stock       $ 1,298,000 $ 9,891,000 $ 37,131,000
Payments for stock issuance costs       $ 62,000 $ 306,000 $ 1,826,000
Remaining amount available for offering $ 36,043,000