3. Inventories (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Inventories Details
Raw materials	$ 347,876	$ 440,723
Work in process	16,372
Finished goods (including $231,700 and $304,500 held by customers at March 31, 2014 and December 31, 2013, respectively)	1,503,690	1,273,358
Total inventories	$ 1,867,938	$ 1,714,081