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EQUITY INCENTIVE PLANS​ (Tables)
 6 Months Ended
Jun. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense Recognized
Stock-based compensation expense recognized for stock options, RSUs and our ESPP is recorded as operating expenses in our condensed statements of operations and comprehensive loss, as follows:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)
2025202420252024
Selling, general and administrative$9,273 $8,460 $17,757 $14,106 
Research and development2,414 2,309 6,018 4,279 
Total$11,687 $10,769 $23,775 $18,385 
Schedule of Total Unrecognized Stock-Based Compensation Expense, Net of Estimated Forfeitures A summary of our total unrecognized stock-based compensation expense, net of estimated forfeitures, as of June 30, 2025 is as follows:
Unrecognized Compensation Expense
(in thousands)
Average Remaining Vesting Period
(in years)
Stock option grants$56,171 2.69
RSU grants$70,930 3.08
ESPP$123 0.17
Schedule of Stock Option Activity
A summary of our stock option activity and related information for the six months ended June 30, 2025 is as follows:
Number of Shares
(in thousands)		Weighted-Average Exercise Price per Share
Balance as of December 31, 202428,085 $5.63 
Options granted4,873 $5.00 
Options exercised(781)$1.86 
Options forfeited or canceled(2,387)$7.14 
Balance as of June 30, 202529,790 $5.51 
Exercisable as of June 30, 202516,282 $5.41 
Schedule of Restricted Stock Units Activity
A summary of our RSUs activity and related information for the six months ended June 30, 2025 is as follows:
Number of RSUs
(in thousands)
Weighted-Average Grant Date Fair Value per Share
Non-vested restricted stock units as of December 31, 20248,013 $6.59 
Granted7,995 $5.07 
Vested(1,746)$5.98 
Forfeited(1,286)$5.99 
Non-vested restricted stock units as of June 30, 202512,976 $5.80