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:

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:

  ​ ​ ​

  ​ ​ ​

  ​ ​ ​

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:

Three Months Ended June 30, 

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