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SHARE-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-based Compensation Awards Granted for Options and RSUs During the Period
In the years ended December 31, 2023 and 2022, the Company granted options and RSUs to employees and directors as follows:
Year ended December 31, 2023
Award amountExercise price rangeVesting periodExpiration
Options535,000 
$2.70
1 year - 4 years
10 years
RSUs435,000 — 4 years— 
Year ended December 31, 2022
Award amountExercise price rangeVesting periodExpiration
Options48,861 
$5.62- $10.98
1 year - 4 years
10 years
RSUs40,339 — 4 years— 
Summary of Underlying Data Used for Computing the Fair Value of the Options
The underlying data used for computing the fair value of the options are as follows:
Year ended December 31,
20232022
Fair value of stock option
$2.18 - $2.23
$3.55 - $7.49
Dividend yield0 %0 %
Expected volatility
104.42% - 105.64%
73.70% - 74.40%
Risk-free interest rate
4.04%
2.20% - 2.92%
Expected term6 years6 years
Summary of Stock Option Activity
The following table summarizes stock option activity for the year ended December 31, 2023:
Number of optionsWeighted Average Exercise Price
Outstanding at December 31, 2022229,787 $138.92 
Granted535,000 2.70 
Forfeited(4,127)72.81 
Expired(16,123)173.42 
Outstanding at December 31, 2023744,537 $40.65 
Exercisable at December 31, 2023176,688 $151.47 
Summary of RSUs Activity
The following table summarizes RSU activity for the year ended December 31, 2023:
Number of RSUsWeighted Average Grant Date
Fair Value
Outstanding at December 31, 202283,616 $43.30 
Awarded435,000 2.70 
Vested(53,845)42.79 
Forfeited(3,792)49.88 
Outstanding at December 31, 2023460,979 $4.99 
Schedule of Share-based Payment Arrangement, Expensed and Capitalized, Amount
The following table illustrates the allocation of share-based compensation within the line items on the statements of operations:
Year ended December 31,
20232022
Research and development expenses534 1,230 
General and administrative expenses2,771 3,419 
Discontinued Operations*— (352)
3,305 4,297 
*Income from stock-based compensation is related to forfeitures.