Shareholders Equity (Tables)

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Schedule of black-scholes option-pricing model

	Six months ended June 30,
	2020		2019
Underlying value of share of Common Stock ($)		5.59-6.21		4.91
Exercise price ($)		5.59-6.21		4.91
Expected volatility (%)		85.0		93.1
Term of the option (years)		6.25		6.25
Risk-free interest rate (%)		0.37-0.52		2.23

Schedule of options granted to purchase ordinary shares

	For the six months ended June 30, 2020
	Number of Options			Weighted average exercise price		Aggregate intrinsic value
				USD		USD in thousands
Outstanding at the beginning of period		3,143,802			1.09		25,733
Granted		893,700			6.16
Forfeited		(41,925	)		2.45
Exercised		(277,429	)		0.63
Outstanding at the end of period		3,718,148			3.08		10,484
Vested at end of period		1,641,346
Weighted average remaining contractual life – years as of June 30, 2020		6.92

Schedule of outstanding warrants

Warrant	Issuance Date	Expiration Date	Exercise Price Per Share (USD)			Number of Shares of Common Stock Underlying Warrants
Private Warrants issued to Yeda (see 1 below)	May 11, 2017	May 11, 2025		(*	)		591,382
Private Warrants issued to founders (see 2 below)	November 27, 2017			-			10,589
Private Placement Warrants (see 3 below)	IPO (December 13, 2018)	December 13, 2023		11.50			2,900,000
Public Warrants (see 4 below)	IPO (December 13, 2018)	October 28, 2024		11.50			3,500,000
							7,001,971

(*) less than $0.001.

Schedule of share-based payment expenses

	Six months ended June 30,
	2020		2019
Research and development expenses, net		502		367
General and administrative		512		264
		1,014		631

	Three months ended June 30,
	2020		2019
Research and development expenses, net		310		173
General and administrative		367		154
		677		327