Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Details)

v3.22.2
Stockholders' Equity - Additional Information (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jan. 22, 2021
USD ($)
$ / shares
shares
Dec. 08, 2020
USD ($)
$ / shares
shares
Apr. 09, 2019
USD ($)
Agreement
$ / shares
shares
Jun. 30, 2022
USD ($)
$ / shares
shares
Jun. 30, 2021
USD ($)
shares
Jun. 30, 2022
USD ($)
$ / shares
shares
Jun. 30, 2021
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2019
shares
Nov. 30, 2019
shares
Class Of Stock [Line Items]                    
Warrants to purchase common stock       2,117,094 2,117,094 2,117,094 2,117,094      
Remeasured fair value of warrants | $       $ 425   $ 425   $ 3,029    
Change in fair value of warrant liability | $       $ 157 $ 4,611 $ 2,604 $ 12,281      
Number of underwriting agreements | Agreement     2              
Aggregate gross proceeds from public offerings | $     $ 70,000              
Underwriting discounts and commissions and estimated offering expenses payable | $     $ 5,000              
Preferred stock, shares outstanding       0   0   0    
Warrant issued to purchase common stock       2,117,094 2,117,094 2,117,094 2,117,094      
Series A Preferred Stock                    
Class Of Stock [Line Items]                    
Share price (in dollars per share) | $ / shares       $ 6.57   $ 6.57        
Preferred stock, shares outstanding       0   0       666
Convertible preferred stock beneficial conversion feature | $           $ 600        
Class A Warrants                    
Class Of Stock [Line Items]                    
Warrants to purchase common stock                 2,118,344  
Warrant exercise price of common stock per share | $ / shares       $ 8.625   $ 8.625        
Warrants expiration date           Oct. 10, 2022        
Maximum ownership percentage to total number stock issued and outstanding holder is prohibited from conversion           4.99%        
Notice period for change in owning percentage           61 days        
Warrant issued to purchase common stock                 2,118,344  
Fair value of warrants | $           $ 9,000        
Class A Warrants                    
Class Of Stock [Line Items]                    
Warrants outstanding and remain unexercised excluding Oxford warrants       2,117,094   2,117,094        
Weighted Average | Class A Warrants | Weighted Average Volatility                    
Class Of Stock [Line Items]                    
Fair value of weighted average volatility           86.06%        
Weighted Average | Class A Warrants | Dividend yield                    
Class Of Stock [Line Items]                    
Fair value of weighted expected term           3 years 6 months        
Common Stock | Series A Preferred Stock                    
Class Of Stock [Line Items]                    
Conversion of series A stock into common stock                   666,000
Underwritten Public Offering                    
Class Of Stock [Line Items]                    
Shares issued 5,400,000                  
Public offering price per share | $ / shares $ 14.00                  
Gross proceeds from common stock | $ $ 75,600                  
Underwriting discounts and commissions and other transaction expenses | $ $ 5,100                  
Private Placement                    
Class Of Stock [Line Items]                    
Warrants to purchase common stock       2,828,125 2,828,125 2,828,125 2,828,125      
Gross proceeds of private placement | $   $ 90,500                
Transaction costs | $   400                
Initial fair value of warrants at issuance | $   $ 19,300                
Remeasured fair value of warrants | $       $ 400   $ 400   $ 3,000    
Warrant issued to purchase common stock       2,828,125 2,828,125 2,828,125 2,828,125      
Private Placement | Common Stock                    
Class Of Stock [Line Items]                    
Shares issued   10,312,500                
Private Placement | Pre-Funded Warrant                    
Class Of Stock [Line Items]                    
Warrants to purchase common stock   1,000,000                
Share price (in dollars per share) | $ / shares   $ 8.00                
Warrant issued to purchase common stock   1,000,000                
Private Placement | Warrants                    
Class Of Stock [Line Items]                    
Share price (in dollars per share) | $ / shares   $ 7.99                
Private Placement | Warrants | Maximum                    
Class Of Stock [Line Items]                    
Warrants to purchase common stock   2,828,125                
Warrant issued to purchase common stock   2,828,125                
Public Offering | Common Stock Agreement | Class A Warrants                    
Class Of Stock [Line Items]                    
Warrants to purchase common stock     1,951,844              
Share price (in dollars per share) | $ / shares     $ 7.50 $ 7.50   $ 7.50        
Warrant issued to purchase common stock     1,951,844              
Public Offering | Preferred Stock Agreement | Series A Preferred Stock                    
Class Of Stock [Line Items]                    
Shares issued     666              
Public Offering | Preferred Stock Agreement | Class A Warrants                    
Class Of Stock [Line Items]                    
Warrants to purchase common stock     166,500              
Share price (in dollars per share) | $ / shares     $ 7,500              
Warrant issued to purchase common stock     166,500              
Public Offering | Common Stock | Common Stock Agreement                    
Class Of Stock [Line Items]                    
Shares issued     8,667,333