Assets Held for Sale and Discontinued Operations - Schedule of Discontinued Operations, Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Operating expenses:
Loss on disposal (including $2,745 of cumulative translation loss)	$ (1,859)	$ 0
Net loss	(6,304)	(4,744)
Discontinued Operations, Held-for-sale
Revenues:
Revenue from discontinued operations	5,747	12,756
Cost of sales:
Cost of discontinued operations	4,537	9,089
Operating expenses:
Selling, general and administrative	4,589	5,576
Provision for doubtful accounts	470	2,000
Depreciation and amortization	132	176
Total operating expenses	5,191	7,752
Operating loss	(3,981)	(4,085)
Other income (expenses)	201
Other income (expenses)		(134)
Loss on disposal (including $2,745 of cumulative translation loss)	(1,859)	0
Cumulative translation loss	2,745
Loss before income taxes	(5,639)	(4,219)
Provision for income taxes	(665)	(525)
Net loss	$ (6,304)	$ (4,744)