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Stock-based Compensation (Tables)
 9 Months Ended
Sep. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Total Stock-Based Compensation Expense
The Company recognized total stock-based compensation expense during the three and nine months ended September 30, 2025 and 2024 as follows (table in thousands):
Three Months Ended September 30,Nine Months Ended September 30,
2025202420252024
Service-based Awards:
Restricted Stock Units$263 $163 $744 $440 
Stock Option Awards269 158 615 470 
Total$532 $321 $1,359 $910 
Schedule of Restricted Stock Awards
A summary of the Company’s performance-based restricted stock awards during the nine months ended September 30, 2025 is as follows:
Performance-based Restricted Stock AwardsNumber of SharesWeighted Average
Grant-Date
Fair Value
Unvested at January 1, 2025891 $62.70 
Unvested at September 30, 2025891 $62.70 
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions
The fair value of RSU-MCs was measured on the date of grant using the Monte Carlo Simulation valuation model based on the following assumptions:
Exercise price$1.07
Expected stock price volatility93.0%
Risk-free interest rate4.0%
Term (years)2.50
Schedule of Restricted Stock Units
A summary of the Company’s service-based restricted stock units during the nine months ended September 30, 2025 and 2024 is as follows:
Service-based Restricted Stock UnitsNumber of SharesWeighted Average
Grant-Date
Fair Value
Unvested at January 1, 2025584,309 $1.72 
Granted1,000,000 1.07 
Vested(417,649)1.85 
Unvested at September 30, 20251,166,660 $1.12 
Schedule of Stock Option Assumptions
The fair value of the service-based stock option awards granted during the nine months ended September 30, 2025 and 2024 were based on the following assumptions:
Nine Months Ended September 30, 2025Nine Months Ended September 30, 2024
Exercise price
$1.07 - $1.26
$1.39 - $1.80
Expected stock price volatility
90.4% - 91.2%
81.8%
Risk-free interest rate
3.74% - 4.14%
4.31% - 4.45%
Term (years)
5.62 - 5.86
5.61 - 5.62
Schedule of Stock Options Activity
A summary of the Company’s service-based stock option activity for the nine months ended September 30, 2025 is as follows:
Service-based Stock Option AwardsShares
Underlying
Options		Weighted
Average Exercise
Price		Weighted
Average
Remaining
Contractual
Term
Aggregate
Intrinsic Value
(in thousands)
Outstanding at January 1, 20251,886,247 $3.98 
Granted1,502,500 1.07 
Exercised(10,313)1.48 
Forfeited(50,805)1.42 
Expired(45,767)3.08 
Outstanding at September 30, 2025
3,281,862 $2.71 8.3$192 
Exercisable at September 30, 2025
1,108,150 $5.47 6.8$—