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Common Stock, and Warrants With-Down Round Protection (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of Stock Grants Activity

The following tables present a summary of the status of the grants to employees, officers and directors as of December 31, 2019 and 2018:

Grants to Employees		Number				Weighted average exercise price (US$)
Balance outstanding as of December 31,2017			5,236,967			$	5.28
Balance exercisable of December 31,2017			2,428,716			$	5.28
Granted during 2018			798,056			$	4.5
Forfeited during 2018			(2,042,413	)		$	6.12
Balance outstanding as of December 31,2018			3,992,610			$	4.7
Balance exercisable of December 31,2018			2,721,587			$	4.63
Granted during 2019 (1)			75,000			$	4.5
Forfeited during 2019			(2,039,525	)		$	4.51
Balance outstanding as of December 31,2019			2,028,085			$	4.88
Balance exercisable of December 31,2019			1,724,194			$	4.63

(1) On January 1, 2019, we issued a ten-year non-qualified stock option to our former President, for the purchase of 75,000 shares of Common Stock at an exercise price of $4.50 per share, with three-year quarterly vesting commencing on the first quarter after the effective date.

Schedule of Stock Grants, by Exercise Price Range

The following tables summarize information about options outstanding at December 31, 2019:

Exercise price (US$)				Outstanding at December 31, 2019				Exercisable at December 31, 2019				Weighted average remaining contractual life (years)
	4.50				1,631,873				1,327,982				7.51
	6.25				344,212				344,212				2.19
	7.00				2,000				2,000				4.50
	7.75				50,000				50,000				7.26
					2,028,085				1,724,194

Schedule of Assumptions Used to Value Options

The fair value of options granted to employees during the years ended on December 31, 2019 and 2018 was estimated at the dates of grant using the Black-Scholes option model. The following are the data and assumptions used:

		2019				2018
Dividend yield (%)			-				-
Expected volatility (%) (*)			56.32				56.59
Risk free interest rate (%)			2.5				1.31
Expected term of options (years)			5				5.5 - 6.5
Exercise price (US dollars)			0.258				4.5
Stock price (US dollars) (**)			0.258				2.45
Fair value (US dollars)			0.0137				0.88-0.99

	(*)	Due to the low trading volume of the Company’s Common Stock, the expected volatility for 2019 and 2018 grant was based on a sample of 248 and 254 companies operating in the Healthcare Products industry, respectively.
	(**)	The Common Stock price, per share for the year ended December 31, 2019 and 2018 reflects the Company’s management’s estimation of the fair value per share of Common Stock. In reaching its estimation for December 31, 2018, management considered, among other things, a valuation prepared by a third-party valuation firm following the issuance of the Series D Units.

Warrant [Member]

Schedule of Changes in Fair Value of Level 3 Liability

The changes in the fair value of the Level 3 liability were as follows (in US dollars):

		Warrants with Down- Round Protection
		December 31,
		2019				2018
Balance, Beginning of the year			-				768,249
Warrants issued as consideration for placement services			-				-
Stock based compensation to financial advisor			-				-
Change in fair value of Warrants with Down-Round Protection			-				-
Reclassification to stockholder’s deficit (*)			-				(768,249	)
Balance, End of year			-				-

(*) As a result of the early adoption of ASU 2017-11, during the year ended December 31, 2018, the Company reclassified all the warrants with down round protection to stockholder’s deficit.

Schedule of Fair Value Assumptions

As of December 31, 2019, and 2018, the key inputs used in the fair value calculations of the warrant that were affected by the down-round protection were as follows:

Fair value calculations - Warrant		31-Dec-19				31-Dec-18
Dividend yield (%)			-				-
Expected volatility (%)			56.32				56.32
Risk free interest rate (%)			2.5				2.5
Expected term of options (years)			5				5
Exercise price (US dollars)			0.258-5.400				0.258
Share price (US dollars)			0.258				0.258
Fair value (US dollars)			0.003-0.134				0.13

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