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Stockholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Options Activity
The following table summarizes the Company’s option activity and related information:
Number of
Options
(in thousands)		Weighted-
Average
Exercise Price
Balance at December 31, 20232,303 $48.71 
Options granted776 15.44 
Options exercised(14)10.14 
Options forfeited(192)38.94 
Balance at June 30, 20242,873 $40.55 
Exercisable as of June 30, 20241,350 $68.71 
Schedule of Restricted Stock Units Activity
The following table summarizes the Company’s RSUs activity and related information:
Number of Units
(in thousands)		Weighted-
Average Grant-
Date Fair Value
Outstanding at December 31, 2023154 $21.73 
Granted75 18.81 
Vested and released(27)27.32 
Forfeited(16)14.02 
Outstanding at June 30, 2024186 $20.41 
Stock-Based Compensation Expense
Schedule of Stock-Based Compensation Expense
The following table presents, by operating expense, the Company’s stock-based compensation expense:
Three Months Ended
June 30,		Six Months Ended
June 30,
2024202320242023
(In thousands)
Research and development$1,088 $1,380 $2,208 $2,761 
General and administrative2,857 3,089 5,903 6,271 
Total stock-based compensation expense$3,945 $4,469 $8,111 $9,032