Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Net sales	$ 3,756	$ 2,632
Cost of sales	2,628	1,943
Gross profit	1,128	689
Selling, general, and administrative expenses	2,927	2,478
Research and development expenses	692	598
Operating loss	(2,491)	(2,387)
Interest income	5	2
Interest expense	(99)	(55)
Debt cost expense	(41)	(27)
Other, net	(1)	1
Loss before provision for income taxes	(2,627)	(2,466)
Income tax provision	3	3
Net loss	$ (2,630)	$ (2,469)
Net loss per common share - basic and diluted (in Dollars per share)	$ (0.06)	$ (0.07)
Weighted average shares used in computing net loss per common share - basic and diluted (in Shares)	44,027	36,856