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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 01, 2023
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Jan. 14, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost, options   $ 17,489      
Stock-based compensation expense   $ 2,671 $ 3,375    
2020 Stock Option Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Increase of authorized shares, percent of common stock outstanding 4.00%       4.00%
Number of additional shares authorized (in shares) 1,457,371        
2020 ESPP          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Increase of authorized shares, percent of common stock outstanding         1.00%
Number of additional shares authorized (in shares) 326,364        
Stock options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost, recognition period (in years)   2 years 3 months 18 days      
Stock-based compensation expense   $ 2,455 3,193    
Stock options | 2020 Stock Option Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares issued under share-based compensation plan   24,776      
Restricted stock units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost, recognition period (in years)   9 months 18 days      
Fair value of units vested   $ 203      
Unrecognized compensation cost   212      
Stock-based compensation expense   $ 112 $ 121    
Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)   0      
Forfeited (in shares)   0      
Units outstanding (in shares)   229,859      
Stock-based compensation expense   $ 0      
Shares issuable under employee stock purchase plan | 2020 ESPP          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares issued under share-based compensation plan   33,202 31,341    
Award purchase period (in months)   6 months      
Maximum percent of fair market value of common stock   85.00%      
Maximum employee subscription rate   10.00%      
Maximum employee subscription amount   $ 25      
Unvested performance restricted stock units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Units vested (in shares)   9,616      
Units outstanding (in shares)       239,475  
Stock-based compensation expense   $ 29