Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2011
Revenues:
eDiscovery	$ 16,281	$ 19,981	$ 23,112
Database, archive, and migration	23,912	23,488	23,881
Total revenues	40,193	43,469	46,993
Operating expenses:
Direct costs of eDiscovery revenue	7,374	9,402	6,838
Direct costs of database, archive, and migration revenue	5,432	5,398	5,632
Product development	7,478	7,661	7,736
Selling, general and administrative	18,594	19,020	24,718
Sale of intangible trade name	(1,000)
Impairments of goodwill and intangible assets		15,047	15,964
Change in fair value of contingent consideration			(164)
Total operating expenses	37,878	56,528	60,724
Income from operations	2,315	(13,059)	(13,731)
Other income (expenses):
Loss on extinguishment of debt		(2,166)
Gain from change in fair value of common stock warrant liability	365	1,054	519
Interest expense	(1,632)	(2,270)	(3,406)
Other, net	(234)	(68)	8
Total other income (expenses)	(1,501)	(3,450)	(2,879)
Income (loss) before income taxes	814	(16,509)	(16,610)
Provision for income taxes	282	153	55
Net income (loss)	$ 532	$ (16,662)	$ (16,665)
Income (loss) per share:
Basic	$ 0.01	$ (1.16)	$ (1.23)
Diluted	$ 0.01	$ (1.16)	$ (1.23)
Weighted-average shares used in computing income (loss) per share:
Basic	14,718,000	14,672,000	13,552,000
Diluted	14,728,000	14,672,000	13,552,000