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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 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 three and six months ended June 30, 2023 and 2022 as follows (table in thousands):
Three Months Ended
June 30,		Six Months Ended
June 30,
2023202220232022
Service-based awards:
Restricted stock units$119 $26 $164 $37 
Stock option awards190 72 338 272 
   Total Service Based Awards309 98 502 309 
Performance-based awards:
Restricted stock awards— — — (391)
Total$309 $98 $502 $(82)
Schedule of Stock Option Assumptions
The fair value of the service-based stock options granted for the six months ended June 30, 2022 were based on the following assumptions:
Six Months Ended June 30, 2023
Exercise price
$1.37 - $2.83
Expected stock price volatility
81.64% - 81.9%
Risk-free interest rate
3.41% - 3.55%
Term (years)
4 - 6
Restricted stock awards  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Schedule of Restricted Stock Awards
A summary of the Company’s restricted stock awards during the six months ended June 30, 2023 is as follows:
Number of SharesWeighted Average
Grant-Date
Fair Value
Unvested at January 1, 2023891 $62.70 
Unvested at June 30, 2023891 $62.70 

A summary of the Company’s restricted stock awards during the six months ended June 30, 2022 is as follows:
Number of SharesWeighted Average
Grant-Date
Fair Value
Unvested at January 1, 20227,118 $62.70 
Forfeited(6,227)$62.70 
Unvested at June 30, 2022891 $62.70 
Restricted stock units - service based awards  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Schedule of Restricted Stock Awards
A summary of the Company’s service-based restricted stock units during the six months ended June 30, 2023 is as follows:
Number of SharesWeighted Average
Grant-Date
Fair Value
Unvested at January 1, 2023125,000 $1.47 
Granted313,065 1.87 
Vested(125,000)1.47 
Unvested at June 30, 2023313,065 $1.87 

A summary of the Company’s service-based restricted stock units during the six months ended June 30, 2022 is as follows:
Number of SharesWeighted Average
Grant-Date
Fair Value
Unvested at January 1, 202229,289 $12.87 
Granted125,000 1.47 
Vested(23,515)11.33 
Forfeited(5,774)19.00 
Unvested at June 30, 2022125,000 $1.47 
Stock option awards - service based awards  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Schedule of Stock Options Activity
A summary of the Company’s service-based stock option activity for the six months ended June 30, 2023 is as follows:
Shares
Underlying
Options		Weighted
Average Exercise
Price		Weighted
Average
Remaining
Contractual
Term
Outstanding at January 1, 20231,206,905 $8.32 8.9
Granted382,745 1.48 5.5
Forfeited(13,447)4.02 — 
Expired(5,604)19.01 — 
Outstanding at June 30, 20231,570,599 $6.65 8.7
Exercisable at June 30, 2023301,986 $26.15 6.5

A summary of the Company’s service-based stock option activity for the six months ended June 30, 2022 is as follows:
Shares
Underlying
Options		Weighted
Average Exercise
Price		Weighted
Average
Remaining
Contractual
Term
Outstanding at January 1, 2022528,591 $32.01 7.5
Granted909 4.07 9.5
Forfeited(24,488)15.00 — 
Expired(81,695)83.32 — 
Outstanding at June 30, 2022423,317 $23.03 7.8
Exercisable at June 30, 2022227,412 $31.19 5.8