Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Changes in Common Stock Options

The following summarizes the changes in common stock options for the three months ended March 31, 2018:

	Options			Weighted Average Exercise Price
Outstanding at December 31, 2017		5,040,450		$	0.97
Granted		226,500		$	0.44
Exercised		—		$	—
Forfeited		(51,550	)	$	0.99
Outstanding at March 31, 2018		5,215,400		$	0.95
Options exercisable at March 31, 2018		2,668,475		$	1.42