​

June 30, 

December 31, 

(U.S. dollars in thousands)

​

2025

​

2024

Accounts payable and accruals – other:

​

​

​

​

​

​

Payroll and related expenses

​

$

1,527

​

$

1,343

Provision for vacation

​

​

2,209

​

​

1,811

Accrued expenses

​

​

7,311

​

​

9,568

Royalties payable

​

​

763

​

​

1,080

Income tax payable

​

​

3,742

​

​

3,476

Payable to customer

​

​

-

​

​

2,056

Property and equipment suppliers

​

378

​

​

254

​

​

$

15,930

​

$

19,588