v3.26.1
Stock-Based Compensation
 6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation Stock-Based Compensation
Share-Based Compensation Expense
The following table presents the details of the Company’s share-based compensation expense (in thousands):
Three Months Ended June 30,Six Months Ended June 30,
2026202520262025
General and administrative$674 $688 $1,337 $1,405 
Research and development372 437 722 934 
Sales and marketing170 133 316 310 
Cost of sales158 161 299 347 
Total stock-based compensation$1,374 $1,419 $2,674 $2,996 
Summary of Stock Option Activity
The following table summarizes the stock option activity for the six months ended June 30, 2026:
Options Outstanding
Number of
Options		Weighted-
Average
Exercise
Price Per
Share		Weighted-
Average
Remaining
Contractual
Life (years)		Aggregate
Intrinsic
Value
(In thousands)
Balance—December 31, 20251,365,002$6.16 4.9$4,303 
Options granted—
Options exercised(820,158)$6.23 $18,470 
Options cancelled/forfeited(853)$11.16 
Balance—June 30, 2026543,991$6.03 4.4$9,872 
Options exercisable—June 30, 2026543,182$6.03 4.4$9,858 
The total grant date fair value of options vested was $0.1 million and $0.2 million during the three months ended June 30, 2026 and 2025, respectively, and $0.1 million and $0.4 million during the six months ended June 30, 2026 and 2025, respectively.
No options were granted during the three and six months ended June 30, 2026 or 2025.
As of June 30, 2026, unrecognized compensation expense related to unvested options was not material and is expected to be recognized over a weighted-average period of 0.78 years. Stock-based compensation cost for options capitalized within inventory at June 30, 2026 and 2025 was not material.
2016 Employee Stock Purchase Plan
In January 2026, there was an increase of 229,777 shares reserved for issuance under the Company’s Employee Stock Purchase Plan (ESPP) pursuant to the terms of the ESPP. The Company had 1,304,274 shares available for future issuance under the ESPP as of June 30, 2026. Employees purchased 67,049 shares for $290,000 during the three and six months ended June 30, 2026. Employees purchased 61,181 shares for $254,000 during the three and six months ended June 30, 2025.
Restricted Stock Units
The following table summarizes restricted stock units (RSUs) activity for the six months ended June 30, 2026:
RSUs Outstanding
Number of
Restricted Stock
Units		Weighted-
Average
Grant Date
Fair Value Per
Share
Balance—December 31, 20251,294,166$6.63 
Granted884,683$9.48 
Vested(406,434)$7.31 
Cancelled/forfeited(3,100)$7.01 
Balance—June 30, 20261,769,315$7.90 
The fair value of RSUs is determined on the date of grant based on the market price of the Company’s common stock on that date. As of June 30, 2026, there was $12.8 million of unrecognized stock-based compensation expense related to RSUs to be recognized over a weighted-average period of 2.9 years. Compensation cost capitalized within inventory was not material as of June 30, 2026 and 2025.