Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Revenue:
Revenues	$ 86,190	$ 71,382
Costs of revenue:
Costs of revenues	41,067	34,866
Gross profit	45,123	36,516
Operating expenses:
Sales and marketing	19,946	17,587
Research and development	14,006	11,532
General and administrative	9,362	8,593
Amortization of intangibles from acquisitions		163
Total operating expenses	43,314	37,875
Operating income (loss)	1,809	(1,359)
Other (income) expense:
Interest income	(524)	(168)
Interest expense	157	156
Other (income) expense, net	(404)	604
Total other (income) expense, net	(771)	592
Income (loss) before income taxes	2,580	(1,951)
Income tax expense	1,183	620
Net income (loss)	1,397	(2,571)
Diluted net income (loss) per share
Net income (loss)	1,397	(2,571)
Other comprehensive income, net of tax:
Foreign currency translation adjustments	(510)	640
Total comprehensive income (loss)	887	(1,931)
Common Class A [Member]
Other (income) expense:
Net income (loss)	$ 1,196	$ (2,199)
Basic net income (loss) per share
Basic net (loss) income per share (in dollars per share)	$ 0.07	$ (0.14)
Diluted net income (loss) per share
Diluted net (loss) income per share (in dollars per share)	$ 0.07	$ (0.14)
Net income (loss)	$ 1,196	$ (2,199)
Common Class B [Member]
Other (income) expense:
Net income (loss)	$ 201	$ (372)
Basic net income (loss) per share
Basic net (loss) income per share (in dollars per share)	$ 0.06	$ (0.12)
Diluted net income (loss) per share
Diluted net (loss) income per share (in dollars per share)	$ 0.06	$ (0.12)
Net income (loss)	$ 201	$ (372)
Subscription and Circulation [Member]
Revenue:
Revenues	21,511	15,343
Costs of revenue:
Costs of revenues	8,228	7,720
License [Member]
Revenue:
Revenues	6,266	5,265
Costs of revenue:
Costs of revenues	664	685
Maintenance [Member]
Revenue:
Revenues	31,483	31,906
Costs of revenue:
Costs of revenues	7,865	7,694
Professional Services [Member]
Revenue:
Revenues	26,930	18,868
Costs of revenue:
Costs of revenues	$ 24,310	$ 18,767