CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Revenue:
License fees	$ 6,996	$ 7,216	$ 21,767	$ 22,110
Maintenance and other	34,799	34,011	103,205	103,742
Subscription fees	3,815	2,283	10,783	6,813
Professional services	16,099	17,223	50,631	49,428
Total revenue	61,709	60,733	186,386	182,093
Costs of revenue:
License fees	969	1,248	2,682	3,283
Maintenance, subscription and other	10,018	8,841	30,359	26,683
Professional services	15,544	16,066	47,128	49,095
Total cost of revenue	26,531	26,155	80,169	79,061
Gross profit	35,178	34,578	106,217	103,032
Operating expenses:
Sales and marketing	14,747	13,974	44,990	42,327
Research and development	9,697	8,811	28,441	26,531
General and administrative	7,654	7,495	24,194	22,605
Total operating expenses	32,098	30,280	97,625	91,463
Operating income	3,080	4,298	8,592	11,569
Other (income) expense:
Interest income	(139)	(188)	(466)	(470)
Interest expense	159	305	775	862
Other (income) expense, net	376	(41)	914	421
Total other expense, net	396	76	1,223	813
Income before income taxes	2,684	4,222	7,369	10,756
Income tax expense	859	1,212	2,741	3,656
Net income	1,825	3,010	4,628	7,100
Comprehensive income:
Foreign currency translation adjustment, net of tax	556	(260)	626	(787)
Total comprehensive income	2,381	2,750	5,254	6,313
Common Class A [Member]
Other (income) expense:
Net income	1,503	2,499	3,822	5,888
Basic net income per share
Earnings per share (in dollars per share)	$ 0.12	$ 0.19	$ 0.30	$ 0.46
Diluted net income per share
Earnings per share (in dollars per share)	$ 0.12	$ 0.19	$ 0.29	$ 0.44
Common Class B [Member]
Other (income) expense:
Net income	$ 322	$ 511	$ 806	$ 1,212
Basic net income per share
Earnings per share (in dollars per share)	$ 0.10	$ 0.16	$ 0.25	$ 0.38
Diluted net income per share
Earnings per share (in dollars per share)	$ 0.10	$ 0.15	$ 0.25	$ 0.37