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7. Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Schedule of options granted under employee stock plans

		Shares Available for Grant				Number of Shares Outstanding				Weighted-Average Exercise Price
Balance as of December 31, 2019			147				3,746			$	1.38
Authorized			1,892				-				-
Granted			(1,847	)			1,847				0.71
Balance as of March 31, 2020			192				5,593			$	1.16

Schedule of weighted average fair value calculations for options

Description		For the three months ended March 31,
		2020				2019
Dividend-yield			0	%			0	%
Risk-free interest rate			1.08	%			2.59	%
Expected volatility			87.43	%			88.52	%
Expected life (years)			6.93				6.41
Market value per share on grant date		$	0.71			$	0.70
Fair value per share on grant date		$	0.54			$	0.53

X

- Definition

Tabular disclosure of share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

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