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Summary of Significant Accounting Policies (Details)
 1 Months Ended 12 Months Ended
Apr. 09, 2021
Aug. 18, 2020
May 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
segment
Dec. 31, 2020
USD ($)
Jan. 01, 2022
USD ($)
Property, Plant and Equipment [Line Items]            
Reverse stock split, conversion ratio 0.3846 0.0100        
Number of reportable segments | segment       1    
Number of operating segments | segment       1    
Contract balances, account receivable       $ 7,100,000 $ 8,400,000  
Impairment of long-lived assets       0 0  
Deferred offering costs       0 484,000  
Grant arrangement term     5 years      
Grant award budget     $ 9,300,000      
Approved funding, first year     $ 800,000      
Compensation earned       $ 100,000    
Royalty payable, percentage       1.00%    
Maximum limit of aggregate royalty, payable       $ 100,000,000    
Royalty expense       500,000 400,000  
Advertising expense       100,000 100,000  
Deferred rent credit       $ 1,400,000 $ 2,000,000  
Subsequent Event            
Property, Plant and Equipment [Line Items]            
Operating lease, right-of-use asset           $ 6,100,000
Operating lease, liability           $ 7,500,000
Minimum            
Property, Plant and Equipment [Line Items]            
Property, plant and equipment, useful life       3 years    
Maximum            
Property, Plant and Equipment [Line Items]            
Property, plant and equipment, useful life       5 years