7. Stock Option Plans and Agreements (Details 1)	6 Months Ended
	Jun. 30, 2019 USD ($) $ / shares shares
Share-based Payment Arrangement [Abstract]
Number of options outstanding, beginning | shares	7,920,000
Number of options granted | shares	2,550,000
Number of options forfeited | shares	(938,000)
Number of options expired | shares	(75,000)
Number of options outstanding, ending | shares	9,457,000
Number of options vested or expected to vest | shares	9,457,000
Number of options exercisable | shares	9,432,000
Weighted average exercise price outstanding, beginning | $ / shares	$ .09
Weighted average exercise price granted | $ / shares	.02
Weighted average exercise price forfeited | $ / shares	.23
Weighted average exercise price expired | $ / shares	.17
Weighted average exercise price outstanding, ending | $ / shares	.05
Weighted average exercise price vested or expected to vest | $ / shares	.05
Weighted average exercise price exercisable | $ / shares	$ .05
Weighted-average remaining contractual term outstanding	4 years 3 months 18 days
Weighted-average remaining contractual term vested or expected to vest	4 years 3 months 18 days
Weighted-average remaining contractual term exercisable	4 years 3 months 18 days
Aggregate intrinsic value outstanding | $	$ 3,100
Aggregate intrinsic value vested or expected to vest | $	3,100
Aggregate intrinsic value exercisable | $	$ 3,100