Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net sales	$ 16,686	$ 10,899
Cost of sales	11,601	7,979
Gross profit	5,085	2,920
Selling, general, and administrative expenses	12,045	10,771
Research and development expenses	3,155	3,511
Operating loss	(10,115)	(11,362)
Interest income	9	8
Interest expense	(489)	(333)
Debt cost expense	(372)	(141)
Other, net	(48)	(6)
	(900)	(472)
Loss before provision for income taxes	(11,015)	(11,834)
Income tax provision	1	9
Net loss	$ (11,016)	$ (11,843)
Net loss per common share - basic and diluted (in Dollars per share)	$ (0.25)	$ (0.31)
Weighted average number of shares outstanding - basic and diluted (in Shares)	44,246	38,318