Condensed Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net sales	$ 1,041,000	$ 1,316,000
Cost of goods sold	669,000	751,000
Gross profit	372,000	565,000
Operating expenses:
Research and development	25,000	46,000
Selling and marketing	161,000	196,000
General and administrative	392,000	390,000
Operating Expenses, Total	578,000	632,000
Operating loss	(206,000)	(67,000)
Other income / (expense):
Interest expense	(71,000)	(65,000)
Other income, net	10,000	0
Other income / (expense), Total	(61,000)	(65,000)
Net loss before tax	(267,000)	(132,000)
Income tax expense	0	0
Net loss	$ (267,000)	$ (132,000)
Basic and diluted loss per common share	$ (0.01)	$ (0.00)
Weighted average number of shares outstanding – basic	29,822,770	28,842,788
Weighted average number of shares outstanding – diluted	29,822,770	28,842,788