The components of inventories are as follows (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
The components of inventories are as follows
Raw materials	$ 795,468	$ 426,996
Finished goods	224,339	288,068
Offsite demo equipment	125,669	125,669
Less inventory reserve	(139,872)	(131,871)
Net inventory	$ 1,005,604	$ 708,862