Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 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	(18,229)		0.28
Balance at March 31, 2020	3,969,952	$	0.44
Exercisable, March 31, 2020	3,063,812	$	0.47
Vested and expected to vest	3,756,712	$	0.44

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 March 31, 2020	30,304	$	0.66	9.4

Summary Of Stock-Based Compensation Expense

	Three months ended March 31,
	2020		2019
Type of awards:
Stock options	$	36	$	32
Restricted stock		5		31
	$	41	$	63
Income statement account:
Selling and marketing	$	9	$	15
General and administrative		32		48
	$	41	$	63

Summary Of Weighted-Average Assumptions

	Three months ended March 31,
	2020			2019
Expected dividend yield		—			—
Expected stock price volatility		65.4	%		67.0	%
Risk-free interest rate		2.6	%		2.6	%
Expected term (in years)		6.0	years		5.6	years
Weighted-average grant date fair-value	$	0.17		$	0.23