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Subsequent Events (Details) - USD ($)
1 Months Ended
Mar. 16, 2020
Feb. 21, 2020
Feb. 04, 2020
Oct. 15, 2018
Feb. 19, 2020
Subsequent Event [Line Items]          
Issuance of common stock (in shares)       5,541,562  
Subsequent event          
Subsequent Event [Line Items]          
Issuance of common stock (in shares)     3,191,489    
Proceeds from issuance of common stock   $ 8,000,000     $ 8,000,000
Stock issuance costs   $ 200,000      
Subsequent event | Over-allotment option          
Subsequent Event [Line Items]          
Issuance of common stock (in shares)   478,723      
Period for purchase of additional shares (in days)   30 days      
Stock price (in dollars per share)     $ 2.22    
Term Loan | Innovatus Life Sciences Lending Fund I, LP | Subsequent event          
Subsequent Event [Line Items]          
Maximum borrowing capacity $ 35,000,000        
Borrowings outstanding 22,500,000        
Remaining borrowing capacity 12,500,000        
Net drawn down proceeds 21,000,000        
Closing costs $ 1,500,000        
Interest rate accrual add-on 4.00%        
Interest rate per annum 8.75%        
Increase in interest rate 1.00%        
Interest only payment period 30 months        
Term Loan | Innovatus Life Sciences Lending Fund I, LP | Base Rate | Subsequent event          
Subsequent Event [Line Items]          
Basis spread on variable rate 4.75%        
Maximum | Term Loan | Innovatus Life Sciences Lending Fund I, LP | Subsequent event          
Subsequent Event [Line Items]          
Interest only payment period 36 months