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Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Summary of Share Option Plan

The following is a summary of the status of the Company’s share option plan as of December 31, 2021, as well as changes during the years:

		December 31, 2021
		Number of Options				Weighted- Average Exercise price
Options outstanding at the beginning of the year			15,955,892			$	0.71
Granted during the year			1,662,897			$	0.90
Exercised during the year			(1,722,880	)		$	0.72
Forfeited during the year			(446,396	)		$	0.84
Outstanding at the end of the year			15,449,513			$	0.73
Options exercisable at year-end			11,449,733			$	0.68

Summary of Share Options Outstanding

The following table summarizes information about share options outstanding as of December 31, 2021:

Outstanding as of December 31, 2021																		Exercisable as of December 31, 2021
Range of exercise prices		Number outstanding				Weighted average remaining contractual term				Weighted average exercise price				Aggregate intrinsic value (U.S. dollars in thousands)				Number Exercisable				Weighted average remaining contractual term				Weighted Average exercise price				Aggregate intrinsic value (U.S. dollars in thousands)
$0.15-$0.86			15,403,350				6.12			$	0.72				107,517				11,416,017				5.29			$	0.67				80,243
$1.87			5,963				9.03			$	1.87				35				—				—				—				—
$2.10			33,126				2.69			$	2.10				186				33,126				2.69			$	2.10				186
$9.07			7,074				9.95			$	9.07				—				590				9.95			$	9.07				—

Summary of Options Granted Estimate the Fair Value of Stock-Based Compensation Award

The following assumptions were used for options granted during the year in order to estimate the fair value of stock-based compensation awards:

		2021				2020
Expected term			6-10				6-10
Expected volatility			46.71%-50.7%				48.15	%
Expected dividend rate			0	%			0	%
Risk-free rate			0.61%-1.74	%			0.42%-1.69	%

Summary of Stock Options Expenses

The following table presents the classification of the stock options expenses for the periods indicated:

		Year Ended December 31
		2021				2020				2019
		U.S. dollars in thousands
Cost of revenue			158				178				180
Research and development			1,684				1,267				1,266
Selling, general and administrative			7,981				3,884				1,418
Total stock-based compensation -Stock Options			9,823				5,329				2,864

Summary of the RSU's

The following is a summary of the status of the Company’s RSU’s as of December 31, 2021, as well as changes during the year:

								December 31, 2021
								Number of RSUs				Weighted- Average Grant Date Fair Value
RSUs outstanding at the beginning of the year									—			—
Granted during the year									133,384			$7.89
Exercised during the year									—			—
Forfeited during the year									—			—
Outstanding at the end of the year									133,384			$7.89
RSUs exercisable at year-end									616			$7.89

Summary of Share-based Payment Arrangement, Restricted Stock Units Exercise Price Range

Outstanding as of December 31, 2021																				Exercisable as of December 31, 2021
Range of exercise prices				Number outstanding				Weighted average remaining contractual term				Weighted average exercise price				Aggregate intrinsic value (U.S. dollars in thousands)				Number Exercisable				Weighted average remaining contractual term				Weighted Average exercise price				Aggregate intrinsic value (U.S. dollars in thousands)
$	7.89				133,384				9.96			$	7.89			$	76				616				9.96			$	7.89				(	*)

(*)   Less than $1 thousand

Summary of Classification of RSU's Expenses

The following table presents the classification of RSU’s expenses for the periods indicated:

		Year Ended December 31
		2021				2020				2019
		U.S. dollars in thousands
Cost of revenue			6				—				—
Research and development			22				—				—
Selling, general and administrative			18				—				—
Total stock-based compensation-RSUs			46				—				—

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