v3.26.1
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2026
Stock-Based Compensation  
Summary of stock options outstanding, exercisable and vested or expected to vest

Weighted-

Average

Weighted-

Remaining

Aggregate

Average

Contractual

Intrinsic

  ​ ​ ​

  ​ ​ ​

Exercise

  ​ ​ ​

Term

  ​ ​ ​

Value

Number of Shares

Price

(years)

(in thousands)

Outstanding, December 31, 2025

3,297,941

$

4.75

7.1

 

$

-

Granted

3,565,769

$

0.78

Exercised

(5,188)

$

0.69

Forfeited

(119,497)

$

4.42

Outstanding, June 30, 2026

6,739,025

$

2.66

8.3

$

763

Vested and exercisable, June 30, 2026

2,749,885

$

4.62

6.0

$

-

Summary of weighted-average assumptions were used to determine the fair value of options

Six Months Ended

June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

Expected term (years)

6.0

5.5

Risk-free interest rate

3.9

%

4.0

%

Volatility factor

105.5

%

107.2

%

Dividend yield

Schedule of RSU activity

  ​ ​ ​

  ​ ​ ​

Weighted-

Average

Number of Shares

Grant Date

Underlying RSUs

Fair Value

Unvested, December 31, 2025

 

726,805

$

3.38

Granted

 

30,000

$

1.22

Vested

 

(231,452)

$

3.75

Forfeited

 

(6,373)

$

3.61

Unvested, June 30, 2026

 

518,980

$

3.09

Schedule of stock-based compensation expense recognized

Stock-based compensation expense recognized during the three and six months ended June 30, 2026 and 2025 was comprised of the following (in thousands):

Three Months Ended

Six Months Ended

June 30, 

June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

2025

Sales and marketing

  ​ ​ ​

$

46

$

56

$

89

$

122

General and administrative

 

685

 

811

1,400

1,668

Research and development

 

174

 

142

347

286

Cost of goods sold

 

-

 

20

-

40

Total stock-based compensation expense

$

905

$

1,029

$

1,836

$

2,116