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Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Estimated Values of Stock Option Grants Valuation Assumptions

The weighted average estimated values of director and employee stock option grants, as well as the weighted average assumptions that were used in calculating such values during the three months ended March 31, 2018 and 2017, were based on estimates at the date of grant as follows:

		April 30,				January 1,				February 10,
		2015 Grant				2016 Grant				2016 Grant
Risk-free interest rate			1.43	%			1.76	%			1.15	%
Weighted average expected term			5 years				5 years				5 years
Expected volatility			143.10	%			134.18	%			132.97	%
Expected dividend yield			0.00	%			0.00	%			0.00	%

		December 6				March 15,				September 25,
		2016 Grant				2017 Grant				2017 Grant
Risk-free interest rate			1.84	%			2.14	%			1.85	%
Weighted average expected term			5 years				5 years				5 years
Expected volatility			123.82	%			121.19	%			130.79	%
Expected dividend yield			0.00	%			0.00	%			0.00	%

Schedule of Stock Option Activity

A summary of stock option activity during the twelve months ended March 31, 2018 and 2017 under our stock option agreements is as follows:

										Weighted-
						Weighted-				Average
		Shares				Average				Remaining		Aggregate
		Under				Exercise				Contractual		Intrinsic
		Option				Price				Life		Value
Outstanding at January 1, 2018			2,238,000			$	0.55			9 years			79,200
Granted			-
Exercised			-
Forfeited and expired			-

Outstanding at March 31, 2018			2,238,000			$	0.55			9 years		$	79,200

Exercisable at March 31, 2018			1,095,500			$	0.67			8 years		$	79,200