Assets Held for Sale and Discontinued Operations - Schedule of Discontinued Operations, Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 30, 2021	Apr. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Recovery of doubtful accounts	$ 453	$ 0
Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization	0	971
Gross profit from sale of lease pool equipment	0	(852)
Recovery of doubtful accounts	443	0
Purchase of seismic equipment held for lease	0	(110)
Sale of used lease pool equipment	0	1,414
Sale of assets held for sale	$ 187	$ 0

Disposal Group, Including Discontinued Operation, Recovery Of Doubtful Accounts

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- Definition

Disposal Group, Including Discontinued Operations, Payments To Acquire Seismic Equipment Held For Lease

+ References

No definition available.

+ Details

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- Definition

Disposal Group, Including Discontinued Operations, Proceeds From Sale Of Assets Held For Sale

+ References

No definition available.

+ Details

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- Definition

Disposal Group, Including Discontinued Operations, Proceeds From Sale Of Lease Pool Equipment

+ References

No definition available.

+ Details

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- Definition

Amount of deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued operations.

+ References

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2443-110228

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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