CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data	3 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Service revenue	$ 17,021	$ 15,363
Product revenue	1,486	1,471
Total revenue	18,507	16,834
Operating expenses:
Cost of service revenue	3,815	3,382
Cost of product revenue	2,270	2,026
Research and development	1,407	1,226
Selling, general and administrative	9,409	9,358
Total operating expenses	16,901	15,992
Income from operations	1,606	842
Other income, net	20	22
Income on change in fair value of warrant liability	0	158
Income before provision (benefit) for income taxes	1,626	1,022
Provision (benefit) for income taxes	(321)	4
Net income	$ 1,947	$ 1,018
Net income per share:
Basic	$ 0.03	$ 0.02
Diluted	$ 0.03	$ 0.02
Weighted average number of shares:
Basic	62,264	63,438
Diluted	65,808	64,605