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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 01, 2023
Jun. 30, 2019
Dec. 31, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average fair value of stock options granted     $ 1.48 $ 6.32
Stock based compensation     $ 7,021 $ 10,308
Number of share options exercised     0  
Intrinsic value of stock options exercised       1,300
Performance Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of performance restricted stock units vested     0  
Fair value of units vested       1,000
Performance Restricted Stock Units [Member] | Nonprobable Performance Based [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized stock-based compensation expense related to unvested share-based awards     $ 1,700  
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of performance restricted stock units vested     76,539  
Fair value of units vested     $ 100 $ 300
Restricted Stock Units (RSUs) [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period     4 years  
Restricted Stock Units (RSUs) [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period     18 months  
Service Based Vesting [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized stock-based compensation expense related to unvested share-based awards     $ 13,600  
Period for recognition of unrecognized expense     2 years 2 months 12 days  
2018 Stock Option and Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock available for issuance under Stock Option and Incentive Plan     3,102,231  
2018 Stock Option and Incentive Plan [Member] | Subsequent Event [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Increase in shares reserved for future issuance 2,425,596      
2018 Stock Option and Incentive Plan [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage applied to the outstanding shares as annual increase in the number of shares authorized for issuance     4.00%  
Term of award     10 years  
Vesting period     4 years  
2018 Stock Option and Incentive Plan [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period     18 months  
2019 Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock available for issuance under Stock Option and Incentive Plan     593,239  
Annual Increase In Aggregate Number Of Shares Reserved For Future Issuance   1,000,000    
Stock based compensation     $ 100  
Percentage of purchase price of common stock under the ESPP     85.00%  
Common stock purchased     120,013 25,563
Stock issued, price per shares     $ 0.96 $ 5.53
2019 Employee Stock Purchase Plan [Member] | Subsequent Event [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Increase in shares reserved for future issuance 0      
2019 Employee Stock Purchase Plan [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage applied to the outstanding shares as annual increase in the number of shares authorized for issuance   1.00%    
Stock based compensation       $ 100