CONSOLIDATED INCOME STATEMENTS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2013	Nov. 30, 2012
Revenues:
Products	$ 53,307	$ 38,793	$ 146,221	$ 118,954
Application subscriptions and other services	10,196	5,547	29,835	13,234
Total revenues	63,503	44,340	176,056	132,188
Cost of revenues:
Products	37,845	27,157	104,456	83,011
Application subscriptions and other services	4,663	3,151	12,285	7,334
Total cost of revenues	42,508	30,308	116,741	90,345
Gross profit	20,995	14,032	59,315	41,843
Operating expenses:
Research and development	5,267	3,564	15,721	10,393
Selling	4,920	2,982	14,789	8,963
General and administrative	3,291	2,699	10,521	8,849
Intangible asset amortization	1,485	475	4,618	1,267
Total operating expenses	14,963	9,720	45,649	29,472
Operating income	6,032	4,312	13,666	12,371
Non-operating expense:
Interest expense, net	(67)	(129)	(276)	(316)
Other expense, net	(10)	(9)	(51)	(14)
Total non-operating expense	(77)	(138)	(327)	(330)
Income before income taxes	5,955	4,174	13,339	12,041
Income tax provision	(1,748)	(19)	(4,603)	(45)
Net income	$ 4,207	$ 4,155	$ 8,736	$ 11,996
Earnings per share:
Basic	$ 0.12	$ 0.14	$ 0.25	$ 0.42
Diluted	$ 0.12	$ 0.14	$ 0.24	$ 0.40
Shares used in computing earnings per share:
Basic	35,171	29,210	34,848	28,537
Diluted	36,206	30,096	35,901	29,684