Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net sales	$ 4,110	$ 3,968	$ 7,862	$ 7,620
Cost of sales	2,852	2,773	5,455	5,345
Gross profit	1,258	1,195	2,407	2,275
Selling, general, and administrative expenses	2,358	2,050	4,849	5,100
Research and development expenses	341	428	877	847
Operating loss	(1,441)	(1,283)	(3,319)	(3,672)
Interest expense	(106)	(44)	(189)	(85)
Other, net	4	7	(12)	3
Loss before provision for income taxes	(1,543)	(1,320)	(3,520)	(3,754)
Income tax provision		3		3
Net loss	$ (1,543)	$ (1,323)	$ (3,520)	$ (3,757)
Net loss per common share - basic and diluted (in Dollars per share)	$ (0.03)	$ (0.03)	$ (0.08)	$ (0.08)
Weighted average shares used in computing net loss per common share - basic and diluted (in Shares)	46,327	46,144	46,294	46,127