Stock Options, Warrants and 401(k) Savings Plan (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Warrants Outstanding

A summary of outstanding warrants follows:

				Weighted
		Exercise		Average
	Number of	Price Range		Exercise
	Shares	Per Share		Price
Outstanding at December 31, 2015	756,365	0.01 to 0.07		$0.022
Warrants expired	35,000	0.045 and 0.06		0.051
Outstanding at December 31, 2016	721,365	0.01 to 0.07		0.021
Warrants exercised	17,700	0.01 to 0.03		0.021
Warrants expired	12,300	0.06 and 0.07		0.063
Outstanding at December 31, 2017	691,365	$0.02		$0.02
Weighted average remaining contractual life (years)	2.83
					Weighted
			Exercise		Average
			Price Range		Exercise
	Shares		Per Share		Price
Exercisable warrants at year end:
2017	691,365	$0.02		$0.02
Weighted average remaining contractual life (years)	2.83