Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Revenues:
Archive and eDiscovery	$ 4,779	$ 6,902	$ 14,936	$ 19,528
Database and migration	3,109	3,538	8,652	10,895
Total revenues	7,888	10,440	23,588	30,423
Operating expenses:
Direct costs of archive and eDiscovery revenue	1,966	2,287	6,077	7,669
Direct costs of database and migration revenue	494	826	1,357	2,252
Product development	1,395	1,725	4,683	5,411
Selling, general and administrative	4,311	5,235	11,807	14,538
Sale of intangible trade name				(1,000)
Total operating expenses	8,166	10,073	23,924	28,870
Income (loss) from operations	(278)	367	(336)	1,553
Other income (expenses)
Gain (loss) from change in fair value of common stock warrant liability	(163)	31	(51)	303
Interest expense	(312)	(407)	(1,039)	(1,249)
Other, net	(54)	19	(51)	(90)
Total other income (expenses)	(529)	(357)	(1,141)	(1,036)
Income (loss) before income taxes	(807)	10	(1,477)	517
Provision for income taxes	71	75	244	173
Net income (loss)	$ (878)	$ (65)	$ (1,721)	$ 344
Income (loss) per share:
Basic	$ (0.05)	$ (0.01)	$ (0.11)	$ 0.00
Diluted	$ (0.05)	$ (0.01)	$ (0.11)	$ 0.00
Weighted-average shares used in computing income (loss) per share:
Basic	16,384	14,718	16,022	14,718
Diluted	16,384	14,718	16,022	14,726