Concentration of Risk and Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2022

Risks and Uncertainties [Abstract]

Schedule of allowance for doubtful accounts

	Balance at										Balance at
	beginning				Reversal of			Write-off of			end of
	of year		Provision		provision			provision			year
	U.S. Dollars (in thousands)
2020		129		-		(87	)		(3	)		39
2021		39		-		-			(32	)		7
2022		7		-		(7	)		-			-