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Selected Statement of Operations Data (Tables)

12 Months Ended

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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Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items.

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