Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Revenue	$ 22,491		$ 21,852		$ 45,714		$ 44,260
Cost of sales	11,785		11,491		23,496		23,639
Gross margin	10,706		10,361		22,218		20,621
Operating expenses:
Selling and administrative	29,124		10,744		41,280		20,758
Loss from operations	(18,418)		(383)		(19,062)		(137)
Other income:
Interest income, net	270		105		349		215
Income (loss) before income taxes	(18,148)		(278)		(18,713)		78
Provision (benefit) for income taxes	9		(17)		62		(60)
Net income (loss)	$ (18,157)		$ (261)		$ (18,775)		$ 138
Basic net income (loss) per share (in dollars per share)	$ (1.56)		$ (0.02)		$ (1.64)		$ 0.01
Diluted net income (loss) per share (in dollars per share)	$ (1.56)		$ (0.02)		$ (1.64)		$ 0.01
Shares used in per share calculations:
Basic (in shares)	11,669	[1]	11,149	[1]	11,451	[1]	11,257	[1]
Diluted (in shares)	11,669		11,149		11,451		11,423

[1] Includes 139,436 and 82,164 vested cumulative DSUs, respectively, for the three months ended September 30, 2012 and 2011 and 132,442 and 76,576 vested cumulative DSUs, respectively, for the six months ended September 30, 2012 and 2011 that will not be issued until the directors holding the DSUs retire from our Board of Directors.