Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Revenue:
Revenues	$ 74,081	$ 76,378	$ 148,228	$ 154,413
Costs of revenue:
Costs of revenues	30,823	36,032	63,248	72,966
Gross profit	43,258	40,346	84,980	81,447
Operating expenses:
Sales and marketing	17,420	20,191	35,977	41,082
Research and development	13,161	13,870	27,178	27,857
General and administrative	10,299	10,392	20,316	19,810
Amortization of intangibles from acquisitions	65	66	129	133
Total operating expenses	40,945	44,519	83,600	88,882
Operating income (loss)	2,313	(4,173)	1,380	(7,435)
Other expense (income):
Interest income	(213)	(789)	(649)	(1,513)
Interest expense	155	148	305	301
Other expense (income), net	1,871	(154)	639	(326)
Total other expense (income), net	1,813	(795)	295	(1,538)
Income (loss) before income taxes	500	(3,378)	1,085	(5,897)
Income tax expense	440	9,872	1,435	10,587
Net income (loss)	60	(13,250)	(350)	(16,484)
Diluted net income (loss) per share
Net income (loss)	60	(13,250)	(350)	(16,484)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	1,607	298	(1,048)	35
Total comprehensive income (loss)	1,667	(12,952)	(1,398)	(16,449)
Common Class A [Member]
Other expense (income):
Net income (loss)	$ 52	$ (11,379)	$ (301)	$ (14,152)
Basic net income (loss) per share
Basic net (loss) income per share (in dollars per share)	$ 0.00	$ (0.69)	$ (0.02)	$ (0.86)
Diluted net income (loss) per share
Diluted net (loss) income per share (in dollars per share)	$ 0.00	$ (0.69)	$ (0.02)	$ (0.86)
Net income (loss)	$ 52	$ (11,379)	$ (301)	$ (14,152)
Common Class B [Member]
Other expense (income):
Net income (loss)	$ 8	$ (1,871)	$ (49)	$ (2,332)
Basic net income (loss) per share
Basic net (loss) income per share (in dollars per share)	$ 0.00	$ (0.57)	$ (0.01)	$ (0.71)
Diluted net income (loss) per share
Diluted net (loss) income per share (in dollars per share)	$ 0.00	$ (0.57)	$ (0.01)	$ (0.71)
Net income (loss)	$ 8	$ (1,871)	$ (49)	$ (2,332)
Subscription and Circulation [Member]
Revenue:
Revenues	31,066	25,888	61,837	51,194
Costs of revenue:
Costs of revenues	10,739	9,903	21,087	19,320
License [Member]
Revenue:
Revenues	3,043	3,516	4,264	7,982
Costs of revenue:
Costs of revenues	565	554	966	1,145
Maintenance [Member]
Revenue:
Revenues	26,486	29,586	52,894	59,485
Costs of revenue:
Costs of revenues	6,413	7,459	13,157	15,062
Professional Services [Member]
Revenue:
Revenues	13,486	17,388	29,233	35,752
Costs of revenue:
Costs of revenues	$ 13,106	$ 18,116	$ 28,038	$ 37,439