Condensed Consolidated Statements Of Operations (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013	Jan. 31, 2012
Revenues:
eDiscovery	$ 4,090,000	$ 4,159,000	$ 12,206,000	$ 15,714,000
Database, archive, and migration	6,350,000	6,910,000	18,217,000	17,944,000
Total revenues	10,440,000	11,069,000	30,423,000	33,658,000
Operating expenses:
Direct costs of eDiscovery revenue	1,680,000	2,491,000	6,056,000	7,123,000
Direct costs of database, archive, and migration revenue	1,395,000	1,255,000	3,950,000	3,955,000
Product development	1,725,000	1,830,000	5,411,000	5,669,000
Selling, general and administrative	5,273,000	4,889,000	14,453,000	14,264,000
Sale of intangible trade name			(1,000,000)
Total operating expenses	10,073,000	10,465,000	28,870,000	31,011,000
Income from operations	367,000	604,000	1,553,000	2,647,000
Other income (expenses):
Loss on extinguishment of debt				(2,166,000)
Gain from change in fair value of common stock warrant liability	31,000	34,000	303,000	636,000
Interest expense	(407,000)	(462,000)	(1,249,000)	(1,832,000)
Other, net	19,000	(93,000)	(90,000)	(66,000)
Total other income (expenses)	(357,000)	(521,000)	(1,036,000)	(3,428,000)
Income (loss) before income taxes	10,000	83,000	517,000	(781,000)
Provision for income taxes	75,000	30,000	173,000	150,000
Net income (loss)	$ (65,000)	$ 53,000	$ 344,000	$ (931,000)
Income (loss) per share:
Basic	$ (0.01)	$ 0.00	$ 0.00	$ (0.08)
Diluted	$ (0.01)	$ 0.00	$ 0.00	$ (0.08)
Weighted-average shares used in computing income (loss) per share:
Basic	14,718	14,713	14,718	14,657
Diluted	14,718	14,713	14,726	14,657