Concentrations (Tables)

12 Months Ended

Dec. 31, 2017

Risks and Uncertainties [Abstract]

Schedules of concentration of accounts receivable and sales

	2017		2016
Superior	31	%	32	%
Best Buy	18	%	22	%
GENCO	7	%	10	%

The amount of net sales for each of these customers are outlined as follows:

	2017		2016		2015
Superior	30	%	27	%	17	%
Best Buy	9	%	11	%	20	%
GENCO	8	%	11	%	11	%

Schedule of percentage of sales by geographic region

The percentage of net sales by geographic region for the years ended December 31, 2017, 2016 and 2015, was approximately:

	2017		2016		2015
United States	84	%	88	%	91	%
Europe	9	%	7	%	8	%
Other	7	%	5	%	1	%