Inventories (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Raw materials	$ 3,486,000	$ 3,027,000
Work in Process	1,388,000	1,503,000
Finished Goods	11,576,000	9,193,000
Allowance for excess quantities	(636,000)	(384,000)
Total inventories	$ 15,813,276	$ 13,338,317