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Geographic and Other Financial Information (Unaudited) (Tables)
12 Months Ended
Dec. 31, 2025
Geographic and Other Financial Information (Unaudited)  
Schedule of revenue from external customers by geographic areas

Geographical revenue information, based on ship-to destination of the customers for the three years ended December 31, 2025, 2024, and 2023 is as follows (in thousands):

By Continent and Region:

Fiscal Year

 

2025

2024

2023

 

  ​ ​ ​

Revenue

  ​ ​ ​

% of Total

  ​ ​ ​

Revenue

  ​ ​ ​

% of Total

  ​ ​ ​

Revenue

  ​ ​ ​

% of Total

 

North America

$

4,406

 

70

%  

$

3,190

 

56

%  

$

6,335

 

52

%

Europe

 

1,285

 

20

%  

 

1,970

 

34

%  

 

727

 

6

%

Asia-Pacific

 

510

 

8

%  

 

418

 

7

%  

 

4,656

 

38

%

Others

 

80

 

1

%  

 

177

 

3

%  

 

411

 

3

%

Total Revenues

$

6,281

 

100

%  

$

5,755

 

100

%  

$

12,129

 

100

%

By Country:

Fiscal Year

2025

2024

2023

 

Revenue

  ​ ​ ​

% of Total

  ​ ​ ​

  ​ ​ ​

Revenue

  ​ ​ ​

% of Total

  ​ ​ ​

  ​ ​ ​

Revenue

  ​ ​ ​

% of Total

 

U.S.

$

4,252

 

68

%  

U.S.

$

2,895

 

50

%  

U.S.

$

6,213

 

51

%

Netherlands

 

574

 

9

%  

Poland

 

984

 

17

%  

Japan

 

4,449

 

37

%

Japan

333

5

%

France

314

5

%  

Chile

316

3

%

Others

 

1,122

 

18

%  

Others

 

1,562

 

27

%  

Others

 

1,151

 

9

%

Total Revenues

$

6,281

 

100

%  

Total Revenues

$

5,755

 

100

%  

Total Revenues

$

12,129

 

100

%