7. Stock Option Plans and Agreements (Tables)

6 Months Ended

Jun. 30, 2019

Share-based Payment Arrangement [Abstract]

Schedule of share-based payment award, stock options, valuation assumptions

Risk-free interest rate	2.17%-2.55%
Expected dividend yield	0%
Expected stock price volatility	100%
Expected life of options	3.0 - 3.9 years

Schedule of share-based compensation, stock options, activity

	Number of Options Outstanding			Weighted Average Exercise Price		Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at December 31, 2018		7,920,000		$	.09
Granted		2,550,000			.02
Forfeited		(938,000	)		.23
Expired		(75,000	)		.17
Outstanding at June 30, 2019		9,457,000		$	.05	4.3 years	$	3,100
At June 30, 2019 - vested or
expected to vest		9,457,000		$	.05	4.3 years	$	3,100
Exercisable		9,432,000		$	.05	4.3 years	$	3,100