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Assets Held for Sale and Discontinued Operations - Schedule of Discontinued Operations, Balance Sheet (Details) - USD ($) $ in Thousands | Apr. 30, 2021 | Jan. 31, 2021
--- | --- | ---
Current assets of discontinued operations: |  |
Total current assets of discontinued operations | $ 4,086 | $ 4,321
Current liabilities of discontinued operations: |  |
Total current liabilities of discontinued operations | 972 | 963
Discontinued Operations, Held-for-sale |  |
Current assets of discontinued operations: |  |
Accounts receivable, net | 1,310 | 1,668
Inventories, net | 47 | 352
Prepaid expenses and other current assets | 340 | 150
Seismic equipment lease pool and property and equipment, net | 2,389 | 2,151
Total current assets of discontinued operations | 4,086 | 4,321
Current liabilities of discontinued operations: |  |
Accounts payable | 13 | 59
Deferred revenue | 73 | 73
Accrued expenses and other current liabilities | 915 | 831
Income taxes payable (receivable) | (29) | 0
Total current liabilities of discontinued operations | $ 972 | $ 963

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