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STOCK-BASED COMPENSATION (Tables)
 3 Months Ended
Mar. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Recognized Stock-based Compensation Expense
The Company’s stock-based compensation expense was recognized in operating expenses as follows:
Three Months Ended
(in thousands)March 31, 2025March 31, 2024
Research and development$401 $529 
General and administrative883 1,439 
Total$1,284 $1,968 
Schedule of Allocation of Stock-based Compensation Expense by Plan
Three Months Ended
(in thousands)March 31, 2025March 31, 2024
Stock options and restricted stock units$1,263 $1,953 
Employee Stock Purchase Plan22 15 
Total$1,284 $1,968 
Schedule of Assumptions Used to Compute Fair Value of Employee Option Granted
The fair value of options granted during the three months ended March 31, 2025 and 2024 was estimated utilizing the following assumptions:
Three Months Ended
March 31, 2025March 31, 2024
Weighted
Average		Weighted
Average
Volatility86.51 %79.87 %
Expected term in years5.456.08
Dividend rate0.00 %0.00 %
Risk-free interest rate3.94 %4.28 %
Fair value of option on grant date$0.41 $2.63 
Schedule of Options Outstanding and Weighted Average Exercise Price
The following table summarizes the number of options outstanding and the weighted average exercise price:
 Number of Shares Weighted
Average
Exercise
Price		Weighted
Average
Remaining
Contractual
Life in Years		Aggregate
Intrinsic
Value
Options outstanding December 31, 202415,341,356 $3.49 5.87$— 
Granted3,550,900 0.63 
Exercised— — 
Forfeited or expired(197,000)2.96 
Options outstanding March 31, 202518,695,256 $2.95 6.49$— 
Vested and exercisable at March 31, 202510,395,628 $4.02 4.73$—