​

​

Year Ended December 31, 

​

2025

​

2024

​

  ​ ​ ​

Due from Qualstar

  ​ ​ ​

Due to Qualstar

  ​ ​ ​

Due from Qualstar

  ​ ​ ​

Due to Qualstar

​

(in thousands)

Balance at January 1,

​

$

8

​

$

12

​

$

2

​

$

32

Billed (or accrued) to Qualstar by Interlink

​

429

​

—

​

450

​

—

Paid by Qualstar to Interlink

​

(432)

​

—

​

(444)

​

—

Billed (or accrued) to Interlink by Qualstar

​

—

​

187

​

—

​

158

Paid by Interlink to Qualstar

​

—

​

(174)

​

—

​

(178)

Balance at December 31, 

​

$

5

​

$

25

​

$

8

​

$

12

​

​

Year Ended December 31, 

​

​

2025

​

2024

​

  ​ ​ ​

Due from BKF Capital

  ​ ​ ​

Due to BKF Capital

  ​ ​ ​

Due from BKF Capital

  ​ ​ ​

Due to BKF Capital

​

​

(in thousands)

Balance at January 1,

​

$

—

​

$

—

​

$

2

​

$

—

Billed (or accrued) to BKF Capital by Interlink

​

8

​

—

​

8

​

—

Paid by BKF Capital to Interlink

​

(5)

​

—

​

(10)

​

—

Billed (or accrued) to Interlink by BKF Capital

​

—

​

—

​

—

​

75

Paid by Interlink to BKF Capital

​

—

​

—

​

—

​

(75)

Balance at December 31, 

​

$

3

​

$

—

​

$

—

​

$

—