Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Shareholders' Equity [Abstract]

Summary Of Stock Option Activity

	Outstanding Options
	Number of Shares	Weighted Average Exercise Price
Balance at January 1, 2020	3,495,601	$	0.46
Options granted	492,580		0.28
Options cancelled/expired	(395,268)		0.55
Balance at June 30, 2020	3,592,913	$	0.43
Exercisable, June 30, 2020	2,888,455	$	0.44
Vested and expected to vest	3,435,921	$	0.43

Summary Of Restricted Stock Activity

	Restricted Shares		Weighted-Average Grant Date Fair Value	Weighted-Average Contractual Life
Non-vested restricted stock at January 1, 2020	149,824	$	0.33	9.1
Vested	(119,520)		0.25	—
Non-vested restricted stock at June 30, 2020	30,304	$	0.66	9.1

Summary Of Stock-Based Compensation Expense

	Three months ended June 30,				Six months ended June 30,
	2020		2019		2020		2019
Type of awards:
Stock options	$	27	$	23	$	63	$	55
Restricted stock		5		3		10		34
	$	32	$	26	$	73	$	89
Income statement account:
Selling and marketing	$	7		10	$	16	$	25
General and administrative		25		16		57		64
	$	32	$	26	$	73	$	89

Summary Of Weighted-Average Assumptions

	Six months ended June 30,
	2020			2019
Expected dividend yield		—			—
Expected stock price volatility		73.4	%		65.4	%
Risk-free interest rate		1.4	%		2.6	%
Expected term (in years)		5.6	years		6.0	years
Weighted-average grant date fair-value	$	0.18		$	0.17