CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Condensed Consolidated Statements Of Income
Service revenue	$ 23,172	$ 17,021
Product revenue	2,080	1,486
Total revenue	25,252	18,507
Operating expenses:
Cost of service revenue	5,686	3,815
Cost of product revenue	2,710	2,270
Research and development	1,826	1,407
Sales and marketing	10,541	8,184
General and administrative	2,064	1,225
Gain on patent sale	(11,965)	0
Total operating expenses	10,862	16,901
Income from operations	14,390	1,606
Other income, net	8	20
Income before provision (benefit) for income taxes	14,398	1,626
Provision (benefit) for income taxes	5,781	(321)
Net income	$ 8,617	$ 1,947
Net income per share:
Basic	$ 0.12	$ 0.03
Diluted	$ 0.12	$ 0.03
Weighted average number of shares:
Basic	70,717	62,264
Diluted	74,110	65,808