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Stock Based Compensation (Tables)

6 Months Ended

Jun. 30, 2024

Stock Based Compensation

Schedule of recognized & allocated compensation costs

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Three Months Ended June 30,

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Six Months Ended June 30,

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2024

2023

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2024

2023

Stock-based compensation costs related to RSUs

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$

1,397

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$

954

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$

2,609

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$

1,589

Stock-based compensation costs related to stock options

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1,612

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1,889

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3,226

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3,476

Stock-based compensation costs related to the ESPP

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42

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80

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79

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80

Total stock-based compensation costs

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$

3,051

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$

2,923

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$

5,914

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$

5,145

Schedule of award activity for stock options and RSU's

The unrecognized future compensation costs as of June 30, 2024 and 2023, were $25,868 and $34,327, respectively.

The following table summarizes our award activity for RSUs and stock options for the three and six months ended June 30, 2024:

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​	​	RSUs	​	Stock Options
Balance at December 31, 2023	​	4,473,016		​	24,264,016
Granted	​	3,159,872	​	​	4,566,167
Vested or Exercised	​	(264,754)	​	​	(2,360,316)
Forfeited	​	(72,619)	​	​	(842,395)
Balance at March 31, 2024	​	7,295,515	​	​	25,627,472
Granted	​	2,162,222	​	​	1,757,960
Vested or Exercised	​	(867,515)	​	​	(1,230,581)
Forfeited	​	(886,343)	​	​	(1,873,843)
Balance at June 30, 2024	​	7,703,879	​	​	24,281,008

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Schedule of fair value of each option using the Black-Scholes option pricing model

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​		Six Months Ended June 30,						​
​		2024			2023			​
Approximate risk‑free rate		​	4.23	%	​	4.17	%	​
Volatility		​	48.10	%	​	46.91	%	​
Average expected life (in years)		​	6	​	​	6	​	​
Dividend yield		​	—	%	​	—	%	​
Weighted‑average grant date fair value	​	$	1.59	​	$	2.8	​	​
Estimated fair value of total stock options granted	​	$	5,175	​	$	7,815	​	​

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Tabular disclosure for stock option plans and restricted stock unit plans.

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- Definition

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 significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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