Geographic Segment Data (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Net Sales to Outside Customers	$ 11,816,448	$ 11,964,764	$ 25,623,592	$ 24,662,419
Total Assets	32,159,723		32,159,723		33,615,522
United States [Member]
Net Sales to Outside Customers	8,556,000	8,715,000	18,546,000	18,149,000
Total Assets	23,190,000		23,190,000		25,302,000
Europe [Member]
Net Sales to Outside Customers	194,000	134,000	315,000	202,000
Total Assets	766,000		766,000		464,000
Mexico [Member]
Net Sales to Outside Customers	2,684,000	2,664,000	5,647,000	5,064,000
Total Assets	7,317,000		7,317,000		7,116,000
United Kingdom [Member]
Net Sales to Outside Customers	382,000	452,000	1,116,000	1,247,000
Total Assets	$ 886,000		$ 886,000		$ 734,000