Stock Incentive Plans - Schedule of Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2019 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options Outstanding Beginning, Shares | shares	5,613,057
Options granted | shares	1,635,000
Options expired / forfeited | shares	(2,427,650)
Options Outstanding Ending, Shares | shares	4,820,407
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options outstanding, weighted average exercise price, beginning of period ( in dollars per share) | $ / shares	$ 0.83
Options granted, weighted average exercise price (in dollars per share) | $ / shares	0.37
Options expired/forfeited, weighted average exercise price (in dollars per share) | $ / shares	0.64
Options outstanding, weighted average exercise price, end of period ( in dollars per share) | $ / shares	$ 0.71
Options Outstanding Exercisable, Shares | shares	2,986,333
Options exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 0.76