Property and Equipment - Depreciation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Property, Plant and Equipment [Line Items]
Total depreciation expense	$ 1,427	$ 1,281
Sales and marketing
Property, Plant and Equipment [Line Items]
Depreciation, nonproduction	326	309
Research and development
Property, Plant and Equipment [Line Items]
Depreciation, nonproduction	549	432
General and administrative
Property, Plant and Equipment [Line Items]
Depreciation, nonproduction	189	155
Subscription
Property, Plant and Equipment [Line Items]
Cost of subscription revenues	90	86
Professional Services and other
Property, Plant and Equipment [Line Items]
Cost of subscription revenues	$ 273	$ 299