8. Stock Option Plans and Agreements (Details 1)	3 Months Ended
	Mar. 31, 2017 USD ($) $ / shares shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Options, Outstanding (in shares) at December 31, 2016 | shares	8,583,000
Number of Options, Options granted (in shares) | shares	150,000
Number of Options, Options expired (in shares) | shares	(22,500)
Number of Options, Options forfeited (in shares) | shares	(12,500)
Number of Options, Outstanding (in shares) at March 31, 2017 | shares	8,698,000
Number of option, Vested or expected to vest at March 31, 2017 | shares	6,310,000
Number of Options, Exercisable (in shares) at March 31, 2017 | shares	6,110,000
Weighted Average Exercise Price, Outstanding (in dollars per share) at December 31, 2016 | $ / shares	$ 0.12
Weighted Average Exercise Price, Options granted (in dollars per share) | $ / shares	0.045
Weighted Average Exercise Price, Options expired (in dollars per share) | $ / shares	0.26
Weighted Average Exercise Price, Options forfeited (in dollars per share) | $ / shares	0.04
Weighted Average Exercise Price, Outstanding (in dollars per share) at March 31, 2017 | $ / shares	0.12
Weighted Average Exercise Price, Vested or expected to vest at March 31, 2017 | $ / shares	0.09
Weighted Average Exercise Price, Exercisable (in dollars per share) at March 31, 2017 | $ / shares	$ 0.09
Weighted-Average Remaining Contractual Term, Outstanding at March 31, 2017	4 years
Weighted-Average Remaining Contractual Term, Vested or expected to vest at March 31, 2017	5 years 1 month 6 days
Weighted-Average Remaining Contractual Term, Exercisable at March 31, 2017	5 years 1 month 6 days
Aggregate Intrinsic Value, Outstanding (in dollars) at March 31, 2017 | $	$ 2,700
Aggregate Intrinsic Value, Vested or expected to vest at March 31, 2017 | $	2,700
Aggregate Intrinsic Value, Exercisable (in dollars) at March 31, 2017 | $	$ 2,700