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8. Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Share-based Compensation [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, 2018			149				2,889			$	1.80
Authorized			655				-				-
Granted			(717	)			717				0.70
Forfeited/expired			144				(144	)			3.53
Balance as of March 31, 2019			231				3,462			$	1.50

Schedule of weighted average fair value calculations for options

		For the three months ended March 31,
Description		2019				2018
Dividend-yield			0	%			0	%
Risk-free interest rate			2.59	%			2.52	%
Expected volatility			88.52	%			81.46	%
Expected life (years)			6.41				6.48
Market value per share on grant date		$	0.70			$	0.70
Fair value per share on grant date		$	0.53			$	0.50

Schedule of weighted average fair value calculations for SARs

Description		March 31, 2019				December 31, 2018
Risk-free interest rate			2.44	%			2.60	%
Expected volatility			79	%			125	%
Market value per share		$	0.83			$	0.61
Fair value per share on grant date		$	1.11			$	1.08

Activity of level 3 liabilities

	SARs Liability Balance
Balance as of December 31, 2018		$	1,132
Related change in fair value			35
Balance as of March 31, 2019		$	1,167

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- References

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Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901

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-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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- Definition

Tabular disclosure of the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets of pension plans and/or other employee benefit plans for the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

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.

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