v3.26.1
STOCK BASED COMPENSATION EXPENSE (Tables)
6 Months Ended
Jun. 30, 2026
STOCK BASED COMPENSATION EXPENSE  
Summary of RSUs subject to time-based vesting

The following table summarizes the activity related to RSUs subject to time-based vesting requirements for the six months ended June 30, 2026:

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​

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​

​

​

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RSUs

​

​

Number of Shares

​

​

Weighted Average Grant Date Fair Value

Non-vested as of December 31, 2025

​

35,818

​

$

328.25

Granted

​

43,301

​

​

2.77

Vested

​

(9,955)

​

​

279.51

Forfeited

​

(2,837)

​

​

311.66

Non-vested as of June 30, 2026

​

66,327

​

$

13.56

​

Summary of the stock option plan and the changes during the period

A summary of the Company’s stock option plan and the changes during the period ended June 30, 2026 is presented below:

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​

​

​

​

​

​

​

​

​

​

  ​ ​ ​

​

  ​ ​ ​

​

​

  ​ ​ ​

Weighted

  ​ ​ ​

​

​

 

​

​

​

​

Weighted

​

Average

​

​

​

 

​

​

Number of

​

Average 

​

Remaining 

​

Aggregate 

 

​

​

Outstanding

​

Exercise 

​

Contractual 

​

Intrinsic 

 

​

​

Options

​

Price

​

Years

​

Value

 

Balance, December 31, 2025

 

234,147

​

$

75.00

 

7.00

 

​

  ​

​

Expired

 

(31)

​

​

15,000.00

 

​

 

​

  ​

​

Forfeited

​

(32,453)

​

​

67.45

​

​

​

​

​

​

Balance, June 30, 2026

 

201,663

​

$

74.77

 

6.50

​

$

—

(1)

Vested and Exercisable, June 30, 2026

 

201,561

​

$

75.09

 

6.41

​

$

—

(1)

Vested and Expected to Vest, June 30, 2026

 

201,663

​

$

74.77

 

6.50

​

$

—

(1)

​

(1) The Company’s closing stock price as of June 30, 2026 is $0.21 per share. As all outstanding options have an exercise price greater than the closing price, there does not exist any intrinsic value as of June 30, 2026.

Summary of stock-based compensation expense

Stock-based compensation included in the condensed consolidated statements of operations was as follows:

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Three Months Ended June 30, 

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Six Months Ended June 30, 

​

 

2026

  ​ ​ ​

2025

​

2026

  ​ ​ ​

2025

Cost of goods sold

​

$

21

​

$

25

​

$

40

​

$

32

Research and development

 

​

85

​

​

122

​

​

166

​

​

177

Selling and marketing

 

​

399

​

​

504

​

 

782

​

 

809

General and administrative

​

​

1,087

​

​

1,192

​

 

2,155

​

​

1,810

Total stock-based compensation expense

 

$

1,592

​

$

1,843

​

$

3,143

​

$

2,828

​