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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2025

Stock-Based Compensation

Summary of Stock-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,
​	2025			2024		​	2025			2024
General and administrative	$	688	​	$	980	​	$	1,405	​	$	1,960
Research and development	​	437	​	​	689	​	​	934	​	​	1,269
Sales and marketing	​	133	​	​	193	​	​	310	​	​	347
Cost of sales	​	161	​	​	—	​	​	347	​	​	—
Total stock-based compensation	$	1,419	​	$	1,862	​	$	2,996	​	$	3,576
​	​	​	​	​	​	​	​	​	​	​	​

​

Summary of stock option activity

​

​	​	​	​	​	​	​	​	​	​	​
​	​	Options Outstanding
​	​	​	​	Weighted-		​	Weighted-	​	​	​
​	​	​	​	Average		​	Average	​	Aggregate
​	​	​	​	Exercise		​	Remaining	​	Intrinsic
​	​	Number of	​	Price Per		​	Contractual	​	Value
​	​	Options		Share			Life (years)		(In thousands)
Balance—December 31, 2024		1,521,857	​	$	6.04		5.9	​	$	1,507
Options granted	​	—	​	​	​	​	​	​	​	​
Options exercised		(23,353)	​	$	2.91	​	​	​	$	70
Options cancelled/forfeited		(8,252)	​	$	6.72	​	​	​	​	​
Balance—June 30, 2025		1,490,252	​	$	6.08	​	5.3	​	$	1,331
Options exercisable—June 30, 2025	​	1,421,558	​	$	6.00	​	5.3	​	$	1,328
​	​	​	​	​	​	​	​	​	​	​

Schedule of restricted stock unit activity

​

​	​	​	​	​	​
​	​	RSUs Outstanding
​	​	​		Weighted-
​	​	​		Average
​	​	Number of		Grant Date
​	​	Restricted Stock		Fair Value Per
​		Units		Share
Balance—December 31, 2024	​	987,965	​	$	7.89
Granted		885,303	​	$	5.76
Vested	​	(426,610)	​	$	7.23
Cancelled/forfeited	​	(17,554)	​	$	6.93
Balance—June 30, 2025		1,429,104		$	6.78

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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