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Segment Reporting - Reconciliation of Operating Income (Loss) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2017 | Jan. 31, 2016 | Jan. 31, 2015
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | $ (31,290) | $ (26,760) | $ (6,745)
Equipment Leasing [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | (27,782) | (23,454) | (4,922)
Equipment Manufacturing and Sales [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | (508) | 279 | 2,178
Operating Segments [Member] | Equipment Leasing [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | (27,782) | (23,454) | (4,922)
Operating Segments [Member] | Equipment Manufacturing and Sales [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | (508) | 279 | 2,178
Eliminations [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | 1 | 117 | (157)
Corporate Expenses [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Consolidated operating income | $ (3,001) | $ (3,702) | $ (3,844)

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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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Period Type: | duration

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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. + Details
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- Details
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- Details
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