Concentration of Credit Risk (Tables)

9 Months Ended

Sep. 30, 2015

Risks and Uncertainties [Abstract]

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

Sales to these customers for the three and nine months ended September 30, 2015 and 2014 are as follows:

	Three Months Ended					Three Months Ended
	September 30, 2015					September 30, 2014
			% of Net					% of Net
Customer	Net Sales		Sales			Net Sales		Sales
Customer A	$	3,256,000		21.9	%	$	3,369,000		23.1	%
Customer B	$	2,282,000		15.3	%	$	2,420,000		16.6	%

	Nine Months Ended					Nine Months Ended
	September 30, 2015					September 30, 2014
			% of Net					% of Net
Customer	Net Sales		Sales			Net Sales		Sales
Customer A	$	11,660,000		26.8	%	$	11,299,000		26.5	%
Customer B	$	6,091,000		14.0	%	$	5,583,000		13.1	%