10. Stock Option Plans and Agreements (Details 1)	6 Months Ended
	Jun. 30, 2016 USD ($) $ / shares shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Options, Outstanding (in shares) at December 31, 2015 | shares	8,443,500
Number of Options, Options granted (in shares) | shares	1,188,000
Number of Options, Options expired (in shares) | shares	(50,000)
Number of Options, Options forfeited (in shares) | shares	(1,303,000)
Number of Options, Outstanding (in shares) at June 30, 2016 | shares	8,278,500
Number of Options, Vested or expected to vest at June 30, 2016 | shares	5,590,500
Number of Options, Exercisable (in shares) at June 30, 2016 | shares	5,340,500
Weighted Average Exercise Price, Outstanding (in dollars per share) at December 31, 2015 | $ / shares	$ .16
Weighted Average Exercise Price, Options granted (in dollars per share) | $ / shares	.19
Weighted Average Exercise Price, Options expired (in dollars per share) | $ / shares	.13
Weighted Average Exercise Price, Options forfeited (in dollars per share) | $ / shares	.21
Weighted Average Exercise Price, Outstanding (in dollars per share) at June 30, 2016 | $ / shares	.16
Weighted Average Exercise Price, Vested or expected to vest at June 30, 2016 | $ / shares	.15
Weighted Average Exercise Price, Exercisable (in dollars per share) at June 30, 2016 | $ / shares	$ .15
Weighted-Average Remaining Contractual Term, Outstanding at June 30, 2016	4 years 2 months 12 days
Weighted-Average Remaining Contractual Term, Vested or expected to vest at June 30, 2016	5 years 3 months 18 days
Weighted-Average Remaining Contractual Term, Exercisable at June 30, 2016	5 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding (in dollars) at June 30, 2016 | $	$ 0
Aggregate Intrinsic Value, Vested or expected to vest (in dollars) at June 30, 2016 | $	0
Aggregate Intrinsic Value, Exercisable (in dollars) at June 30, 2016 | $	$ 0