v3.26.1
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, 2026
Jan. 01, 2025
Apr. 30, 2024
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2021
Nov. 30, 2022
Class of Stock [Line Items]                        
Common stock, shares authorized (in shares)       200,000,000     200,000,000   200,000,000 200,000,000    
Common stock, shares outstanding (in shares)       5,306,894     5,306,894   5,283,321 5,188,743    
Common stock, shares issued (in shares)       5,306,894     5,306,894   5,283,321 5,188,743    
Preferred stock, shares authorized (in shares)       50,000,000     50,000,000   50,000,000 50,000,000    
Preferred stock, shares outstanding (in shares)       0     0   0 0    
Weighted average grant date fair value (in dollars per share)             $ 3.6 $ 4.96 $ 4.92 $ 11.78    
Intrinsic value of stock options vested                 $ 0      
Unrecognized share-based compensation expense       $ 1,800     $ 1,800   $ 2,800      
Total unrecognized compensation costs, weighted average period for recognition             1 year 8 months 12 days   1 year 10 months 24 days      
Share-based compensation       424   $ 1,614 $ 1,037 $ 3,493 $ 5,314 $ 7,993    
Outstanding, Aggregate Intrinsic Value       2,348     2,348   89 $ 0    
Options exercisable, Aggregate Intrinsic Value       $ 1,300 $ 1,260   $ 1,300   $ 0      
Share Price       $ 16     $ 16   $ 5.49      
Restricted Stock Awards                        
Class of Stock [Line Items]                        
Unrecognized share-based compensation expense, restricted stock awards                 $ 0      
Restricted Stock Units (RSUs)                        
Class of Stock [Line Items]                        
Total unrecognized compensation costs, weighted average period for recognition             1 year 10 months 24 days   2 years 4 months 24 days      
Unrecognized share-based compensation expense, restricted stock units       $ 200     $ 200   $ 300      
2021 Equity Incentive Plan                        
Class of Stock [Line Items]                        
Percentage of number of shares of common stock outstanding                     5.00%  
Number of shares increased (in shares) 264,166 259,438             259,438 236,434    
Shares reserved for future issuance (in shares)       1,501,008     1,501,008   1,257,573   680,043  
Shares available for future issuance (in shares)       846,407     846,407   590,690      
2021 Employee Stock Purchase Plan                        
Class of Stock [Line Items]                        
Common stock issuable (in shares)                     36,415  
Percentage of number of shares of common stock outstanding                 1.00%   1.00%  
Number of shares increased (in shares)   0                    
Shares available for future issuance (in shares)       91,479     91,479   94,281      
Common stock shares outstanding (in shares)       72,831     72,831   72,831      
Shares issued (in shares)             2,802 4,375 7,258 7,603    
Share-based compensation arrangement by share-based payment award, purchase price of common stock, percent         85.00%   85.00%   85.00%      
Share-based compensation                 $ 16 $ 100    
Follow-on Offering | Pre-Funded Warrants                        
Class of Stock [Line Items]                        
Number of securities called by warrants or rights (in shares)       416,673   416,673 416,673 416,673       416,673
Common stock price per share (in dollars per share)                       $ 47.9992
Pre-funded warrants exercise price (in dollars per share)                       $ 0.0008
Percent excess limit             9.99%   9.99%      
Days of notice             61 days   61 days      
Percentage of common stock beneficially owned not exceed             19.99%   19.99%      
Securities Purchase Agreement | Johnson & Johnson                        
Class of Stock [Line Items]                        
Sale of stock, number of shares issued in transaction (in shares)     454,545                  
Sale of stock, price per share (in dollars per share)     $ 14.56                  
Sale of stock, premium on stock price (as a percent)     10.00%                  
Gross proceeds     $ 6,600