Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2019

Shareholders' Equity [Abstract]

Summary Of Stock Option Activity

	Outstanding Options
	Number of Shares	Weighted Average Exercise Price
Balance at January 1, 2019	3,825,083	$	0.48
Options granted	205,000		0.28
Options cancelled/expired	(139,899)		0.64
Balance at March 31, 2019	3,890,184	$	0.46
Exercisable, March 31, 2019	3,161,973	$	0.47
Vested and expected to vest	3,703,458	$	0.46

Summary Of Restricted Stock Activity

	Restricted Shares		Weighted-Average Grant Date Fair Value	Weighted-Average Contractual Life
Non-vested restricted stock at January 1, 2019	253,363	$	0.31	9.4
Granted	358,560		0.25	—
Vested	(121,623)		0.37	—
Cancelled/expired	—		—	—
Non-vested restricted stock at March 31, 2019	490,300	$	0.26	9.7

Summary Of Stock-Based Compensation Expense

	Three months ended March 31,
	2019		2018
Type of awards:
Stock options	$	32	$	31
Restricted stock		31		18
	$	63	$	49
Income statement account:
Selling and marketing	$	15	$	15
General and administrative		48		34
	$	63	$	49

Summary Of Weighted-Average Assumptions

	Three months ended March 31,
	2019			2018
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