Inventories (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
Inventories [Abstract]
Raw materials	$ 996,686	$ 1,312,011
Work in process	1,502,406	1,533,951
Finished goods	825,811	775,630
Inventory, Gross, Total	3,324,903	3,621,592
Less inventory reserve	(295,000)	(285,000)
Total inventories	$ 3,029,903	$ 3,336,592