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Stock-Based Compensation - (Tables)
 12 Months Ended
Dec. 31, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Schedule of total stock-based compensation expense
The Company recognized total stock-based compensation expense during the years ended December 31, 2023 and 2022 as follows (table in thousands):
Year Ended December 31,
20232022
Service based awards:
Restricted stock units$375 $129 
Stock option awards557 576 
932 705 
Performance based awards:
Restricted stock awards— (390)
Total$932 $315 
Restricted stock awards - Performance Based Restricted Stock Awards  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Schedule of restricted stock award
A summary of the Company’s performance based restricted stock awards during the year ended December 31, 2023 is as follows:
Performance Based Restricted Stock AwardsNumber of SharesWeighted Average
Grant-Date
Fair Value
Unvested at January 1, 2023891 $62.70 
Unvested at December 31, 2023891 $62.70 
Restricted stock awards - Service Based Restricted Stock Units  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Schedule of restricted stock award
A summary of the Company’s service based restricted stock units during the year ended December 31, 2023 is as follows:
Service Based Restricted Stock UnitsNumber of SharesWeighted Average
Grant-Date
Fair Value
Unvested at January 1, 2023125,000 $1.47 
Granted313,065 $1.87 
Forfeited(54,180)$1.37 
Vested(125,000)$1.47 
Unvested at December 31, 2023258,885 $1.83 
Service Based Stock Option Awards  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Schedule of stock option assumptions
The fair value of the service based stock option awards granted for the years ended December 31, 2023 and 2022 were based on the following assumptions:
December 31,
20232022
Exercise price
$1.37 - $2.83
$1.28 - $1.66
Expected stock price volatility
81.6% - 81.8%
76.2% - 78.5%
Risk-free interest rate
3.41% - 4.84%
1.97% - 3.44%
Term (years)
4.0 - 6.0
5.5 - 6.0
Schedule of stock options activity
A summary of the Company’s service based stock option activity for the year ended December 31, 2023 is as follows:
Service Based Stock Option AwardsShares
Underlying
Options		Weighted
Average
Exercise
Price		Weighted
Average
Remaining
Contractual
Term
Aggregate
Intrinsic
Value
(in $1,000's)
Outstanding at January 1, 20231,206,905 $8.32 
Granted497,245 $1.58 
Expired(146,230)$22.76 
Forfeited(229,299)$2.47 
Outstanding at December 31, 20231,328,621 $5.22 8.5$450 
Exercisable at December 31, 2023361,531 $14.19 7.3$76