Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Revenue:
Subscription	$ 17,420	$ 12,317	$ 32,763	$ 23,809
License	6,743	6,416	12,008	10,363
Maintenance and other	31,971	33,266	63,877	66,102
Professional services	19,824	17,779	38,692	34,901
Total revenue	75,958	69,778	147,340	135,175
Costs of revenue:
Subscription	7,428	6,740	15,148	12,940
License	828	765	1,513	1,490
Maintenance and other	7,840	7,742	15,534	15,511
Professional services	20,598	17,557	39,365	35,001
Total cost of revenue	36,694	32,804	71,560	64,942
Gross profit	39,264	36,974	75,780	70,233
Operating expenses:
Sales and marketing	17,697	17,294	35,284	34,232
Research and development	11,689	11,069	23,221	22,212
General and administrative	9,224	8,483	17,817	16,489
Amortization of intangibles from acquisitions	111	166	274	331
Total operating expenses	38,721	37,012	76,596	73,264
Operating income (loss)	543	(38)	(816)	(3,031)
Other (income) expense:
Interest income	(493)	(159)	(661)	(331)
Interest expense	157	161	313	335
Other (income) expense, net	1,208	(433)	1,812	437
Total other (income) expense	872	(431)	1,464	441
(Loss) income before income taxes	(329)	393	(2,280)	(3,472)
Income tax expense (benefit)	832	(575)	1,452	(1,648)
Net (loss) income	(1,161)	968	(3,732)	(1,824)
Other comprehensive income, net of tax:
Foreign currency translation adjustment	1,132	(246)	1,772	360
Total comprehensive (loss) income	$ (29)	$ 722	$ (1,960)	$ (1,464)
Common Class A [Member]
Basic net (loss) income per share
Basic net (loss) income per share (in dollars per share)	$ (0.06)	$ 0.05	$ (0.20)	$ (0.10)
Diluted net (loss) income per share
Diluted net (loss) income per share (in dollars per share)	$ (0.06)	$ 0.05	$ (0.20)	$ (0.10)
Other (income) expense:
Net (loss) income	$ (994)	$ 828	$ (3,193)	$ (1,556)
Common Class B [Member]
Basic net (loss) income per share
Basic net (loss) income per share (in dollars per share)	$ (0.05)	$ 0.04	$ (0.17)	$ (0.08)
Diluted net (loss) income per share
Diluted net (loss) income per share (in dollars per share)	$ (0.05)	$ 0.04	$ (0.17)	$ (0.08)
Other (income) expense:
Net (loss) income	$ (167)	$ 140	$ (539)	$ (268)