Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Revenue:
Revenues	$ 76,378,000	$ 84,543,000	$ 154,413,000	$ 170,733,000
Costs of revenue:
Costs of revenues	36,032,000	40,436,000	72,966,000	81,503,000
Gross profit	40,346,000	44,107,000	81,447,000	89,230,000
Operating expenses:
Sales and marketing	20,191,000	19,502,000	41,082,000	39,448,000
Research and development	13,870,000	13,513,000	27,857,000	27,519,000
General and administrative	10,392,000	9,366,000	19,810,000	18,728,000
Amortization of intangibles from acquisitions	66,000		133,000	0
Total operating expenses	44,519,000	42,381,000	88,882,000	85,695,000
Operating (loss) income	(4,173,000)	1,726,000	(7,435,000)	3,535,000
Other (income) expense:
Interest income	(789,000)	(743,000)	(1,513,000)	(1,267,000)
Interest expense	148,000	154,000	301,000	311,000
Other (income), net	(154,000)	(269,000)	(326,000)	(673,000)
Total other (income), net	(795,000)	(858,000)	(1,538,000)	(1,629,000)
(Loss) income before income taxes	(3,378,000)	2,584,000	(5,897,000)	5,164,000
Income tax expense	9,872,000	1,471,000	10,587,000	2,654,000
Net (loss) income	(13,250,000)	1,113,000	(16,484,000)	2,510,000
Diluted net (loss) income per share
Net (loss) income	(13,250,000)	1,113,000	(16,484,000)	2,510,000
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	298,000	(326,000)	35,000	(836,000)
Total comprehensive (loss) income	(12,952,000)	787,000	(16,449,000)	1,674,000
Common Class A [Member]
Other (income) expense:
Net (loss) income	$ (11,379,000)	$ 954,000	$ (14,152,000)	$ 2,150,000
Basic net (loss) income per share
Basic net (loss) income per share (in dollars per share)	$ (0.69)	$ 0.06	$ (0.86)	$ 0.13
Diluted net (loss) income per share
Diluted net (loss) income per share (in dollars per share)	$ (0.69)	$ 0.05	$ (0.86)	$ 0.12
Net (loss) income	$ (11,379,000)	$ 954,000	$ (14,152,000)	$ 2,150,000
Common Class B [Member]
Other (income) expense:
Net (loss) income	$ (1,871,000)	$ 159,000	$ (2,332,000)	$ 360,000
Basic net (loss) income per share
Basic net (loss) income per share (in dollars per share)	$ (0.57)	$ 0.05	$ (0.71)	$ 0.11
Diluted net (loss) income per share
Diluted net (loss) income per share (in dollars per share)	$ (0.57)	$ 0.05	$ (0.71)	$ 0.11
Net (loss) income	$ (1,871,000)	$ 159,000	$ (2,332,000)	$ 360,000
Subscription and Circulation [Member]
Revenue:
Revenues	25,888,000	22,439,000	51,194,000	43,950,000
Costs of revenue:
Costs of revenues	9,903,000	8,334,000	19,320,000	16,562,000
License [Member]
Revenue:
Revenues	3,516,000	5,561,000	7,982,000	11,827,000
Costs of revenue:
Costs of revenues	554,000	574,000	1,145,000	1,238,000
Maintenance [Member]
Revenue:
Revenues	29,586,000	30,574,000	59,485,000	62,057,000
Costs of revenue:
Costs of revenues	7,459,000	7,774,000	15,062,000	15,639,000
Professional Services [Member]
Revenue:
Revenues	17,388,000	25,969,000	35,752,000	52,899,000
Costs of revenue:
Costs of revenues	$ 18,116,000	$ 23,754,000	$ 37,439,000	$ 48,064,000