Inventories (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Summary of inventories
Raw materials	$ 199,257	$ 490,729
Finished goods	999,391	907,647
Inventory gross, Total	1,198,648	1,398,376
Allowance for excess quantities	(60,166)	(60,166)
Inventories net, Total	$ 1,138,482	$ 1,338,210