Assets Held for Sale and Discontinued Operations - Schedule of Discontinued Operations, Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal of discontinued operations	$ 1,859	$ 0
Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization	1,830	4,818
Gross profit from sale of lease pool equipment	(1,326)	(1,145)
Provision for doubtful accounts	470	2,000
Loss on disposal of discontinued operations	1,859	0
Sale of used lease pool equipment	2,010	1,415
Sale of assets held for sale	1,506	0
Purchase of seismic equipment held for lease	$ (110)	$ (2,955)