Research and Development, Net (Tables)

12 Months Ended

Dec. 31, 2021

Research and Development [Abstract]

Schedule of research and development, net

	Year ended December 31,
	2021			2020			2019
	USD in thousands
Payroll and related expenses		7,556			5,922			5,679
Subcontracted work and consulting		1,751			1,534			3,123
Share-based payments to service provider		118			67			37
Rent and office maintenance		810			671			720
Travel expenses		44			54			236
Other		309			415			492
Less participation in grants		(351	)		--			--
Sales of prototypes		(67	)		(100	)		(77	)
		10,170			8,563			10,210