Stock Options and Warrants (Tables)

9 Months Ended

Sep. 30, 2019

Employee Stock Option [Member]

Schedule of share-based compensation activity

	Nine months ended September 30, 2019							Nine months ended September 30, 2018
	Shares			Weighted Average Exercise Price		Aggregate Intrinsic Value as of September 30, 2019		Shares			Weighted Average Exercise Price		Aggregate Intrinsic Value as of September 30, 2018
Options outstanding at beginning of period		2,222,000		$	0.13				2,147,000		$	0.13
Granted		80,000		$	0.07				80,000		$	0.10
Exercised		0		NA					0		NA
Cancelled/expired		(50,000	)	$	0.20				(5,000	)	$	0.26
Options outstanding at end of period		2,252,000		$	0.13	$	1,000		2,222,000		$	0.13	$	3,000
Options exercisable at end of period		2,172,000		$	0.13				2,142,000		$	0.13

Assumptions

	Nine months ended
	2019		2018
Volatility		85%		79%
Expected term (years)	10 years		10 years
Risk-free interest rate		2.01%		2.90%
Dividend yield		0%		0%

Warrant [Member]

Schedule of share-based compensation activity

	Nine months ended September 30, 2019						Nine months ended September 30, 2018
	Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value as of September 30, 2019		Shares			Weighted Average Exercise Price		Aggregate Intrinsic Value as of September 30, 2018
Warrants outstanding at beginning of period		2,000,000	$	0.18				2,060,000		$	0.18
Granted		0	NA					0		NA
Exercised		0	NA					0		NA
Cancelled/expired		0	NA					(60,000	)	$	0.18
Warrants outstanding at end of period		2,000,000	$	0.18		None		2,000,000		$	0.18		None
Warrants exercisable at end of period		2,000,000	$	0.18				2,000,000		$	0.18