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SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION | 12 Months Ended
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Dec. 31, 2023
SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION |
SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION | NOTE 14 - SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION Balance sheets: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
(U.S. dollars in thousands) |  | 2022 |  | 2023
a. Other assets: |  | ​ |  |  | ​ |
Institutions | ​ | $ | 364 | ​ | $ | 482
Prepaid expenses | ​ |  | 774 | ​ |  | 444
Sundry | ​ |  | 172 | ​ |  | 129
​ | ​ | $ | 1,310 | ​ | $ | 1,055
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
(U.S. dollars in thousands) |  | 2022 |  | 2023
b. Accounts payable and accruals – other: |  | ​ |  |  | ​ |
Payroll and related expenses | ​ | $ | 1,216 | ​ | $ | 1,437
Interest payable | ​ |  | 719 | ​ |  | 511
Provision for vacation | ​ |  | 1,404 | ​ |  | 1,605
Accrued expenses | ​ |  | 7,478 | ​ |  | 9,009
Royalties payable | ​ |  | 781 | ​ |  | 637
Income tax payable | ​ | ​ | 530 | ​ | ​ | 2,876
Sales reserves | ​ | ​ | — | ​ | ​ | 2,861
Property and equipment suppliers | ​ |  | 143 | ​ |  | 614
​ | ​ | $ | 12,271 | ​ | $ | 19,550
​

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