Stock Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

The following table summarizes stock option activity for the nine months ended September 30, 2019.

	Options Outstanding
	Shares		Weighted Average Exercise Price
Outstanding, December 31, 2018	5,613,057		$	0.83
Options granted	1,635,000		0.37
Options expired / forfeited	(2,427,650	)	0.64
Outstanding, September 30, 2019	4,820,407		0.71
Exercisable, September 30, 2019	2,986,333		$	0.76

Summary of Additional Information on Stock Options Outstanding

The following table summarizes additional information on stock options outstanding at September 30, 2019.

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number Outstanding	Weighted- Average Remaining Contractual Life (Years)	Weighted Average Exercise Price		Number Exercisable	Weighted Average Exercise Price
$0.28 - $1.00	4,312,000	8.59	$	0.57	2,762,000	$	0.66
$1.50 - $1.80	493,207	7.93	$	1.79	209,133	$	1.79
$2.60 - $6.35	15,200	0.77	$	4.48	15,200	$	4.48
Totals	4,820,407	8.50	$	0.71	2,986,333	$	0.76