CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2018	Aug. 31, 2017
Revenues:
Revenues	$ 96,037	$ 89,767	$ 190,925	$ 177,848
Cost of revenues:
Cost of revenues	56,216	52,929	113,013	103,567
Gross profit	39,821	36,838	77,912	74,281
Operating expenses:
Research and development	7,599	6,725	14,200	12,557
Selling and marketing	12,523	12,515	25,020	25,186
General and administrative	11,991	10,756	25,427	27,166
Restructuring (see Note 7)	566		3,949
Intangible asset amortization	2,893	3,710	5,641	7,568
Total operating expenses	35,572	33,706	74,237	72,477
Operating income	4,249	3,132	3,675	1,804
Non-operating income (expense):
Investment income	1,007	396	1,860	729
Interest expense	(3,767)	(2,567)	(6,432)	(5,085)
Gain on legal settlement (see Note 16)		15,032	13,333	15,032
Loss on extinguishment of debt (see Note 6)	(2,033)		(2,033)
Other income (expense)	(277)	314	(503)	431
Total non-operating income (expense)	(5,070)	13,175	6,225	11,107
Income (loss) before income taxes and equity in net loss of affiliate	(821)	16,307	9,900	12,911
Income tax benefit (provision)	497	(3,699)	(1,274)	(2,619)
Income (loss) before equity in net loss of affiliate	(324)	12,608	8,626	10,292
Equity in net loss of affiliate	(530)	(376)	(969)	(713)
Net income (loss)	$ (854)	$ 12,232	$ 7,657	$ 9,579
Earnings (loss) per share:
Basic	$ (0.02)	$ 0.35	$ 0.22	$ 0.27
Diluted	$ (0.02)	$ 0.34	$ 0.21	$ 0.27
Shares used in computing earnings (loss) per share:
Basic	34,850	35,204	35,141	35,136
Diluted	34,850	36,021	36,073	35,973
Comprehensive income (loss):
Net income (loss)	$ (854)	$ 12,232	$ 7,657	$ 9,579
Other comprehensive income (loss):
Foreign currency translation adjustments	(14)	(260)	3	(179)
Unrealized gain on available-for-sale securities, net of tax		10		51
Total comprehensive income (loss)	(868)	11,982	7,660	9,451
Products [Member]
Revenues:
Revenues	76,974	74,517	153,890	145,637
Cost of revenues:
Cost of revenues	46,045	44,641	93,398	87,066
Application Subscriptions and Related Products and Other Services [Member]
Revenues:
Revenues	19,063	15,250	37,035	32,211
Cost of revenues:
Cost of revenues	$ 10,171	$ 8,288	$ 19,615	$ 16,501