Shareholders' Equity (Tables)

9 Months Ended

Sep. 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	1,095,356		0.23
Options cancelled/expired	(1,235,268)		0.49
Balance at September 30, 2020	3,355,689	$	0.37
Exercisable, September 30, 2020	2,118,500	$	0.44
Vested and expected to vest	3,021,463	$	0.39

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	(149,824)		0.33	—
Non-vested restricted stock at September 30, 2020	—	$	—	—

Summary Of Stock-Based Compensation Expense

	Three months ended September 30,				Nine months ended September 30,
	2020		2019		2020		2019
Type of awards:
Stock options	$	55	$	24	$	118	$	79
Restricted stock		2		(10)		12		24
	$	57	$	14	$	130	$	103
Income statement account:
Selling and marketing	$	36		12	$	52	$	37
General and administrative		21		2		78		66
	$	57	$	14	$	130	$	103

Summary Of Weighted-Average Assumptions

	Nine months ended September 30,
	2020			2019
Expected dividend yield		—			—
Expected stock price volatility		73.1	%		65.4	%
Risk-free interest rate		0.7	%		2.6	%
Expected term (in years)		5.4	years		6.0	years
Weighted-average grant date fair-value	$	0.14		$	0.17