Stock Plans and Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Stock Plans and Stock Based Compensation [Abstract]

Summary of stock option activity

	Options Outstanding							Options Exercisable
	Options Outstanding		Weighted Average Exercise Price		Weighted Average Fair Value		Weighted Average Remaining Contractual Life	Options Exercisable	Weighted Average Exercise Price		Weighted Average Fair Value		Weighted Average Remaining Contractual Life
At January 1, 2017	17,369,820		$	0.07	$	0.07	4.59 years	12,672,230	$	0.08	$	0.08	2.79 years
Forfeited	(3,840	)	$	0.08	$	0.08
Canceled	(2,202,979	)	$	0.11	$	0.09
At September 30, 2017	15,163,001		$	0.07	$	0.07	4.40 years	10,836,051	$	0.08	$	0.07	2.64 years