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STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 01, 2024
Jan. 01, 2023
Apr. 30, 2024
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2021
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2022
Nov. 30, 2022
Class of Stock [Line Items]                          
Common stock, shares authorized (in shares)       200,000,000   200,000,000       200,000,000      
Common stock, shares issued (in shares)       41,487,586   41,487,586       37,829,565      
Common stock, shares outstanding (in shares)       41,487,586   41,487,586       37,829,565      
Preferred stock, shares authorized (in shares)       50,000,000   50,000,000       50,000,000      
Preferred stock, shares outstanding (in shares)       0   0       0      
Weighted average grant date fair value (in dollars per share)           $ 1.47 $ 4.93            
Unrecognized share-based compensation expense       $ 11,100   $ 11,100              
Total unrecognized compensation costs, weighted average period for recognition           2 years 4 months 24 days              
Total stock-based compensation       1,915 $ 2,692 $ 4,003 $ 5,737            
Restricted Stock Awards                          
Class of Stock [Line Items]                          
Total unrecognized compensation costs, weighted average period for recognition           8 months 12 days              
Unrecognized share-based compensation expense, restricted stock awards       500   $ 500              
Restricted Stock Units (RSUs)                          
Class of Stock [Line Items]                          
Total unrecognized compensation costs, weighted average period for recognition           2 years 10 months 24 days              
Unrecognized share-based compensation expense, restricted stock units       $ 900   $ 900              
2021 Equity Incentive Plan                          
Class of Stock [Line Items]                          
Common stock issuable (in shares)       8,683,135   8,683,135   5,440,344          
Percentage of number of shares of common stock outstanding               5.00%          
Additional shares authorized (in shares) 1,891,478 1,891,868                      
Shares available for future issuance (in shares)       3,454,623   3,454,623              
2021 Employee Stock Purchase Plan                          
Class of Stock [Line Items]                          
Percentage of number of shares of common stock outstanding               1.00%          
Additional shares authorized (in shares) 0 378,373                      
Shares available for future issuance (in shares)       834,589   834,589              
Common stock issuable (in shares)               291,324          
Common stock shares outstanding (in shares)       582,648   582,648              
Share-based compensation arrangement by share-based payment award, purchase price of common stock (as a percent)           85.00%              
Total stock-based compensation       $ 12 $ 60 $ 54 $ 122            
Pre-Funded Warrants | Follow on Offering                          
Class of Stock [Line Items]                          
Number of securities called by warrants or rights (in shares)       3,333,388 3,333,388 3,333,388 3,333,388           3,333,388
Offering price (in dollars per share)                         $ 5.9999
Pre-funded warrants exercise price (in dollars per share)                         $ 0.0001
Exceed limit percentage with exercise to aggregate share of common stock beneficially owned (as a percent)           9.99%              
Days of notice           61 days              
Percentage of common stock beneficially owned not exceed (as a percent)           19.99%              
COMMON                          
Class of Stock [Line Items]                          
Common stock, shares outstanding (in shares)       41,487,586 37,790,856 41,487,586 37,790,856   37,811,970 37,829,565 37,746,214 37,837,369  
Shares issued (in shares)       38,289 43,423 38,289 43,423            
COMMON | 2021 Employee Stock Purchase Plan                          
Class of Stock [Line Items]                          
Shares issued (in shares)           38,289 43,423            
Johnson & Johnson | Securities Purchase Agreement                          
Class of Stock [Line Items]                          
Sale of stock, number of shares issued in transaction (in shares)     3,636,363                    
Sale of stock, price per share (in dollars per share)     $ 1.82                    
Sale of stock, premium on stock price (as a percent)     10.00%                    
Gross proceeds     $ 6,600