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STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2025

STOCK-BASED COMPENSATION

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

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​	​	​	​	​	​
​			Six Months Ended June 30,		​
​		​	2025
Risk-free interest rate	​	​		4.44	%
Expected volatility	​	​		125.37	%
Expected term (years)	​	​		5.38	​
Expected dividend yield	​	​	​	0.00	%
Fair value, per share	​	​	$	476.10	​

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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Six Months Ended

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June 30,

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June 30,

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2025

​

2024

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2025

​

2024

Cost of sales

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$

1

​

$

5

​

$

7

​

$

9

Selling, general and administrative

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345

​

298

​

​

853

​

​

628

Research and development

​

​

64

​

​

64

​

​

171

​

​

130

Total stock-based compensation expense

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$

410

​

$

367

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$

1,031

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$

767

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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