Stock Compensation (Tables)

6 Months Ended

Jun. 30, 2020

Stock Compensation [Abstract]

Schedule of Allocation of Non-Cash Stock-Based Compensation

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Cost of revenues	$	6	$	6	$	12	$	14
Research and development		18		21		35		45
Selling, general and administrative		20		70		40		231
Total stock compensation expense	$	44	$	97	$	87	$	290

Schedule of Key Assumptions of Fair Value of Stock Options Granted

	Six Months Ended
	June 30,
	2020			2019
Dividend yield		0	%	0	%
Risk free interest rates		2.48	%	2.48	%
Expected volatility		41.7 to 49.2	%	41.7 to 49.2	%
Expected term (in years)		3.5 to 4.8		3.5 to 4.0

Schedule of Option Activity

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (In Years)		Aggregate Intrinsic Value
Outstanding at December 31, 2019		5,404,985	$	2.40
Options granted		—		—
Options exercised		—		—
Options forfeited		—		—
Options cancelled or expired		(346,625)		3.54
Outstanding at June 30, 2020		5,058,360	$	2.40		3.04	$	—
Vested or expected to vest at June 30, 2020 (1)		5,055,131	$	2.40		3.04	$	—
Exercisable at June 30, 2020		4,896,954	$	2.32		3.03	$	—

(1) The expected to vest options are the result of applying the pre-vesting forfeiture rate assumptions to total unvested options.