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STOCK-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense
The following table shows total stock-based compensation expense recognized in the accompanying Consolidated Statements of Operations (in thousands):
Year Ended December 31,
20252024
Research and development$4,166 $5,698 
General and administrative4,913 6,684 
Total stock-based compensation expense$9,079 $12,382 
Schedule of Assumptions used for Estimating Fair Value of Employee Stock Options The assumptions used for estimating the fair value of the employee stock options were as follows:
Year Ended December 31,
20252024
Risk-free interest rate
4.01-4.14%
4.35 %
Expected term (in years)
5.43-5.46
5.36
Expected dividend yield of stock— — 
Expected volatility
99.96-103.86%
82.98 %
Schedule of Assumptions used for Estimating the Fair Value of the ESPP Purchase Rights
The assumptions used for estimating the fair value of the ESPP purchase rights are as follows:
Year Ended December 31,
20252024
Risk-free interest rate
3.51-4.26%
4.13-5.32%
Expected term (in years)
0.5-2.0
0.5-2.0
Expected dividend yield of stock— — 
Expected volatility
82.96-173.63%
99.27-153.06%