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Selected Statement of Operations Data (Tables) | 12 Months Ended
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Dec. 31, 2022
Selected Statement of Operations Data [Abstract] |
Schedule of revenues classified by product lines |
|  | Years Ended December 31, |
|  | 2 0 2 2 |  |  | 2 0 2 1 |  |  | 2 0 2 0 |
|  | U.S. dollars in thousands |
Product line “A” |  | $ | 11,545 |  |  | $ | 12,069 |  |  | $ | 11,986 |
Product line “B” |  |  | 2,343 |  |  |  | 2,286 |  |  |  | 2,642 |
Product line “C” |  |  | 7,663 |  |  |  | 11,976 |  |  |  | 8,746 |
|  | $ | 21,551 |  |  | $ | 26,331 |  |  | $ | 23,374 |
Schedule of geographical revenues classified by geographical location of the customers |
|  | Years Ended December 31, |
|  | 2 0 2 2 |  |  | 2 0 2 1 |  |  | 2 0 2 0 |
|  | U.S. dollars in thousands |
The Americas |  | $ | 8,536 |  |  | $ | 9,421 |  |  | $ | 10,355 |
Europe |  |  | 11,382 |  |  |  | 14,702 |  |  |  | 11,734 |
Israel |  |  | 825 |  |  |  | 1,366 |  |  |  | 893 |
Other |  |  | 808 |  |  |  | 842 |  |  |  | 392 |
|  | $ | 21,551 |  |  | $ | 26,331 |  |  | $ | 23,374 |
Schedule of financial income, net |
|  | Years Ended December 31, |
|  | 2 0 2 2 |  |  | 2 0 2 1 |  |  | 2 0 2 0 |
|  | U.S. dollars in thousands |
Income: |  |  |  |  |  |  |  |  |
Interest on bank deposits and short-term investments |  | $ | 262 |  |  | $ | 110 |  |  | $ | 172 |
Interest on non-current trade receivables |  |  | 58 |  |  |  | - |  |  |  | - |
Non-dollar currency gains, net |  |  | - |  |  |  | - |  |  |  | 147 |
Income from marketable securities |  |  | - |  |  |  | - |  |  |  | 83 |
Realized gain from sale of available-for-sale securities |  |  | - |  |  |  | 3 |  |  |  | - |
|  |  | 320 |  |  |  | 113 |  |  |  | 402 |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |
Non-dollar currency losses, net |  |  | (99 | ) |  |  | (8 | ) |  |  | - |
Interest |  |  | (60 | ) |  |  | - |  |  |  | - |
Unrealized loss from marketable securities |  |  | (34 | ) |  |  | (1 | ) |  |  | - |
Realized loss from sale of marketable securities |  |  | (11 | ) |  |  | - |  |  |  | - |
Bank commissions and charges |  |  | (23 | ) |  |  | (49 | ) |  |  | (23 | )
|  |  | (227 | ) |  |  | (58 | ) |  |  | (23 | )
|  | $ | 93 |  |  | $ | 55 |  |  | $ | 379 |
Schedule of earnings per ordinary share EPS |
|  | Years Ended December 31, |
|  | 2 0 2 2 |  |  | 2 0 2 1 |  |  | 2 0 2 0 |
|  | In thousands |
Weighted average number of shares issued and outstanding - used in computation of basic EPS |  |  | 20,099 |  |  |  | 20,006 |  |  |  | 19,907 |
Incremental shares from assumed exercise of options |  |  | 298 |  |  |  | 264 |  |  |  | 231 |
Weighted average number of shares used in computation of diluted EPS |  |  | 20,397 |  |  |  | 20,270 |  |  |  | 20,138 |

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