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Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2024
Stockholders' Equity Note [Abstract]  
Schedule of Stock Options Activity
A summary of the stock option activity under the Company's equity incentive plans is presented below:
Number of
Shares
Weighted
Average
Exercise
Price
Weighted
Average
Remaining
Term
Aggregate
Intrinsic Value
Balance as of December 31, 2023845$24.98 1.71$— 
Granted7,250 2.19 
Exercised(1)3.37 
Forfeited(585)2.93 
Expired(627)23.85 
Balance as of December 31, 20246,882 $2.95 9.24$3,263 
Expected to vest at December 31, 20246,882 $2.95 9.24$3,263 
Exercisable at December 31, 2024174$31.38 4.18$1
Schedule of Fair Value of Stock Option Awards Valuation Assumptions
The fair value of stock option awards is estimated on the date of grant using the Black-Scholes option-pricing model based upon the following range of assumptions:
202420232022
Exercise price
$1.55 – $4.46
$2.44 –$2.48
$4.68 – $21.24
Expected dividend yield0%0%0%
Expected volatility
65% –74%
93% – 97%
48% –93%
Expected term (years)
5.47– 6.20
6.10 – 6.20
1.00 – 6.20
Risk free interest rate
4.16% – 4.65%
4.17% – 4.57%
1.86% – 3.95%
Schedule of RSU Activity
A summary of RSU activity is presented below:
Shares
Weighted Average Grant-Date Fair Value
Outstanding as of December 31, 20232,190$3.74 
Granted9731.43 
Vested(1,431)3.64 
Forfeited(629)3.50 
Outstanding as of December 31, 20241,103$1.97