Inventories (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Classification of inventories [Abstract]
Raw materials, net	$ 2,644,000	$ 2,864,000
Work in process, net	1,297,000	1,384,000
Finished goods, net	1,493,000	1,428,000
Total Inventories, net	5,434,000	5,676,000	[1]
Inventory Reserve for Obsolescence	$ 2,247,000	$ 1,942,000

[1] The Condensed Consolidated Balance Sheet as of December 31, 2011, has been derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.