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Subsequent Events - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended
Feb. 18, 2022
Feb. 28, 2022
Dec. 31, 2021
Dec. 31, 2020
Subsequent Event [Line Items]        
Common stock, shares issued     10,638,000 10,318,000
Subsequent Event        
Subsequent Event [Line Items]        
Lease expiration date   Apr. 30, 2022    
Revolving Line of Credit | Subsequent Event        
Subsequent Event [Line Items]        
Revolving line of credit amount $ 4.0      
Line of credit maximum borrowing rate 80.00%      
Revolving Line of Credit , interest rate 1.75%      
Line of credit facility maturity date Feb. 18, 2023