v3.26.1
STOCK-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Fair Values of Stock Options Granted and Assumptions Used in Black-Scholes Model The weighted average fair value of stock options granted, and the assumptions used for the Black-Scholes option pricing model were as follows:

Years Ended December 31,
20252024
Weighted average fair value of stock options granted$1.81 $5.31 
Assumptions:
Risk-free interest rate
3.6% - 4.1%
4.2% - 4.5%
Expected volatility
106.2% - 110.5%
99.8% - 109.3%
Expected term (in years)
5.3 - 6.0
5.0 - 6.0
Schedule of Information on Stock Option Activity


Information on stock option activity is as follows:
 
Options
Exercisable
Weighted Average
Exercise
Price Per
Share
Options
Outstanding
Weighted Average
Exercise
Price Per
Share
Balance as of December 31, 2024127,267$316.92 572,264$75.44 
Granted—— 907,0532.18 
Vested265,6755.25 —— 
Exercised—— —— 
Expired(8,834)369.25 (8,834)369.25 
Forfeited(1,300)227.50 (111,686)6.96 
Balance as of December 31, 2025382,808$99.71 1,358,797$30.25 
Schedule of Stock-Based Compensation Expense

Stock-based compensation expense related to stock option awards is as follows:
 Years Ended December 31,
In Thousands20252024
Stock-based compensation expense$1,316 $521 
Stock-based compensation expense related to RSAs is as follows:
 Years Ended December 31,
In Thousands20252024
Stock-based compensation expense$5,051 $9,495 


Stock-based compensation expense related to RSUs is as follows:
 Years Ended December 31,
In Thousands20252024
Stock-based compensation expense$1,821 $734 
Certain consolidated statement of operations amounts were as follows:
Years Ended December 31,
In Thousands20252024
Stock-based compensation expense:
Research and development$2,720 $3,392 
Selling, general, and administrative5,468 7,358 
Total$8,188 $10,750 
Schedule of Nonvested Share Activity Information on RSA activity is as follows:
 
Restricted Stock
Awards
Weighted Average Grant
Date Fair Value
Unvested balance as of December 31, 2024274,058$31.50 
Granted—— 
Vested(161,664)31.50 
Forfeited(27,209)31.50 
Unvested balance as of December 31, 202585,185$31.50 
Information on RSU activity is as follows:
 
Restricted Stock
Units
Weighted Average Grant
Date Fair Value
Unvested balance as of December 31, 2024779,861$7.62 
Granted931,1891.89 
Vested(247,969)8.02 
Forfeited(103,874)6.19 
Unvested balance as of December 31, 20251,359,207$3.73 
Schedule of Grant Date Fair Value of Awards Vested

The total fair value of RSAs that vested is as follows:
 Years Ended December 31,
In Thousands20252024
Fair value of shares vested$308 $3,738 

The total fair value of RSUs that vested is as follows:
 Years Ended December 31,
In Thousands20252024
Fair value of shares vested$405 $629