Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Net revenues
Licenses	$ 3,974	$ 4,378	$ 4,223
Services	9,372	9,292	9,714
Total net revenues	13,346	13,670	13,937
Operating Expenses [Abstract]
Cost of license revenues	13	17	13
Cost of service revenues	1,823	1,714	1,700
Selling and marketing	5,202	4,637	4,337
Research and development	5,887	5,956	6,140
General and administrative	3,806	4,175	4,129
Total operating expenses	16,731	16,499	16,319
Operating loss	(3,385)	(2,829)	(2,382)
Other expense/income
Interest expense-net	(2)	0	(1)
Other expense-net	(62)	(1)	778
Total other expense	(64)	(1)	777
Loss before income taxes	(3,449)	(2,830)	(1,605)
Income tax provision	98	149	(2)
Net loss	$ (3,547)	$ (2,979)	$ (1,603)
Basic and diluted net loss per share	$ (0.13)	$ (0.11)	$ (0.06)
Shares used in computing basic and diluted net loss per share	28,146	28,005	27,305