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STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2024

STOCK-BASED COMPENSATION

Schedule of weighted-average assumptions used in Black-Scholes option pricing model

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​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​		Three Months Ended September 30,					​		Nine Months Ended September 30,
​		2024			2023			​	2024			2023		​
Risk-free interest rate	​		4.38	%		4.29	%	​		4.38	%	​	3.93	%
Expected volatility	​		128.73	%		75.26	%	​		128.73	%		79.43	%
Expected term (years)	​		5.27	​		5.76	​	​		5.27	​		5.70	​
Expected dividend yield	​	​	0.00	%	​	0.00	%	​	​	0.00	%		0.00	%
Fair value, per share	​	$	0.84	​	$	6.40	​	​	$	0.84	​	$	10.17	​

Schedule of stock-based compensation expense

Total stock-based compensation expense was as follows (in thousands):

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Three Months Ended

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Nine Months Ended

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​

September 30,

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September 30,

​

​

2024

​

2023

​

2024

​

2023

Cost of sales

​

$

14

​

$

5

​

$

23

​

$

14

Selling, general and administrative

​

1,032

​

330

​

​

1,660

​

​

989

Research and development

​

​

281

​

​

68

​

​

411

​

​

225

Total stock-based compensation expense

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$

1,327

​

$

403

​

$

2,094

​

$

1,228

X

- References

No definition available.

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (f)(2)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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