CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011
Revenue:
License fees	$ 6,906	$ 8,550	$ 14,771	$ 14,894
Maintenance and other	33,886	35,393	68,406	69,731
Subscription fees	3,745	2,322	6,968	4,530
Professional services	16,432	15,692	34,532	32,205
Total revenue	60,969	61,957	124,677	121,360
Costs of revenue:
License fees	832	1,004	1,713	2,035
Maintenance, subscription and other	10,341	9,067	20,341	17,842
Professional services	15,846	16,741	31,584	33,029
Total cost of revenue	27,019	26,812	53,638	52,906
Gross profit	33,950	35,145	71,039	68,454
Operating expenses:
Sales and marketing	14,747	13,864	30,243	28,353
Research and development	9,210	9,237	18,744	17,720
General and administrative	8,435	7,397	16,540	15,110
Total operating expenses	32,392	30,498	65,527	61,183
Operating income	1,558	4,647	5,512	7,271
Other expense (income):
Interest income	(164)	(146)	(327)	(282)
Interest expense	330	287	616	557
Other (income) expense, net	92	(356)	538	462
Total other (income) expense, net	258	(215)	827	737
Income before income taxes	1,300	4,862	4,685	6,534
Income tax expense	341	1,792	1,882	2,444
Net income	959	3,070	2,803	4,090
Comprehensive income:
Foreign currency translation adjustment, net of tax	(75)	43	70	(527)
Total comprehensive income	884	3,113	2,873	3,563
Common Class A [Member]
Other expense (income):
Net income	795	2,544	2,319	3,389
Basic net income per share
Earnings per share (in dollars per share)	$ 0.06	$ 0.20	$ 0.18	$ 0.26
Diluted net income per share
Earnings per share (in dollars per share)	$ 0.06	$ 0.19	$ 0.18	$ 0.26
Common Class B [Member]
Other expense (income):
Net income	$ 164	$ 526	$ 484	$ 701
Basic net income per share
Earnings per share (in dollars per share)	$ 0.05	$ 0.16	$ 0.15	$ 0.22
Diluted net income per share
Earnings per share (in dollars per share)	$ 0.05	$ 0.16	$ 0.15	$ 0.21