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Note 3 - Assets Held for Sale and Discontinued Operations - Held for Sale and Discontinued Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2021 | Oct. 31, 2020 | Jan. 31, 2021
Loss recognized on classification as held for sale | $ (3,341) |  | $ (3,341) |  | $ (2,327)
Total assets of discontinued operations | 588 |  | 588 |  | 4,321
Total liabilities of discontinued operations | 861 |  | 861 |  | 963
Loss on disposal (including $2,745 of cumulative translation loss) |  |  | (0) | $ (1,859) |
Net income loss | (499) | $ (1,220) | (703) | (6,143) |
Loss on disposal of discontinued operations |  |  | 0 | 1,859 |
Sale of used lease pool equipment |  |  | 0 | 2,010 |
Sale of assets held for sale |  |  | 3,187 | 734 |
Purchases of seismic equipment held for lease |  |  | 0 | (110) |
Lease Pool Equipment [Member] |  |  |  |  |
Gross profit from sale of lease pool equipment |  |  | (0) | 1,326 |
Discontinued Operations, Held-for-sale [Member] |  |  |  |  |
Accounts receivable, net | 1,091 |  | 1,091 |  | 1,668
Inventories, net | 102 |  | 102 |  | 352
Prepaid expenses and other current assets | 134 |  | 134 |  | 150
Seismic equipment lease pool and property and equipment, net | 2,602 |  | 2,602 |  | 4,478
Total assets of discontinued operations | 588 |  | 588 |  | 4,321
Accounts payable | 95 |  | 95 |  | 59
Deferred revenue | 73 |  | 73 |  | 73
Accrued expenses and other current liabilities | 693 |  | 693 |  | 831
Total liabilities of discontinued operations | 861 |  | 861 |  | $ 963
Revenue from discontinued operations | 53 | 313 | 840 | 5,731 |
Cost of discontinued operations | 86 | 263 | 791 | 4,389 |
Selling, general and administrative | 502 | 1,146 | 1,222 | 4,322 |
(Recovery) provision for doubtful accounts | (5) | 0 | (450) | 470 |
Depreciation and amortization | 1 | 43 | 4 | 128 |
Total operating expenses | 498 | 1,189 | 776 | 4,920 |
Operating loss | (531) | (1,139) | (727) | (3,578) |
Other income (expenses) | 41 | (75) | 37 | 0 |
Loss on disposal (including $2,745 of cumulative translation loss) | 0 | 0 | 0 | (1,859) |
Loss before income taxes | (490) |  |  |  |
Provision for income taxes | (9) | (6) | (13) | (706) |
Net income loss | (499) | (1,220) | (703) | (6,143) |
Depreciation and amortization |  |  | 0 | 1,771 |
Loss on disposal of discontinued operations | $ 0 | $ 0 | 0 | 1,859 |
Sale of used lease pool equipment |  |  | 0 | 2,010 |
Sale of assets held for sale |  |  | 3,948 | 734 |
Purchases of seismic equipment held for lease |  |  | 0 | (110) |
Discontinued Operations, Held-for-sale [Member] | Lease Pool Equipment [Member] |  |  |  |  |
Gross profit from sale of lease pool equipment |  |  | $ 0 | $ (1,326) |

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