Assets Held for Sale and Discontinued Operations - Schedule of Discontinued Operations, Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2020	Oct. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal (including $2,745 of cumulative translation loss)			$ (1,859)	$ 0
Net loss	$ (1,220)	$ (709)	(6,143)	(2,570)
Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from discontinued operations	313	2,488	5,731	8,379
Cost of discontinued operations	263	1,752	4,389	6,266
Selling, general and administrative	1,146	1,305	4,322	4,195
Provision for doubtful accounts	0	0	470	0
Depreciation and amortization	43	41	128	136
Total operating expenses	1,189	1,346	4,920	4,331
Operating loss	(1,139)	(610)	(3,578)	(2,218)
Other income (expenses)	(75)	(8)		(114)
Other income (expenses)			0
Loss on disposal (including $2,745 of cumulative translation loss)	0	0	(1,859)	0
Cumulative translation loss	2,745		2,745
Loss before income taxes	(1,214)	(618)	(5,437)	(2,332)
Provision for income taxes	(6)	(91)	(706)	(238)
Net loss	$ (1,220)	$ (709)	$ (6,143)	$ (2,570)