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Balance Sheet | 9 Months Ended
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Oct. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Balance Sheet | Balance Sheet
| As of October 31, 2020 |  | As of January 31, 2020
| Current |  | Long-term |  | Total |  | Current |  | Long-term |  | Total
Accounts receivable | $ | 6,653 |  |  | $ | — |  |  | $ | 6,653 |  |  | $ | 9,001 |  |  | $ | — |  |  | $ | 9,001 |
Less allowance for doubtful accounts | (1,044) |  |  | — |  |  | (1,044) |  |  | (2,378) |  |  | — |  |  | (2,378) |
Accounts receivable net of allowance for doubtful accounts | $ | 5,609 |  |  | $ | — |  |  | $ | 5,609 |  |  | $ | 6,623 |  |  | $ | — |  |  | $ | 6,623 |
|  | October 31, 2020 |  | January 31, 2020
|  | (in thousands)
Inventories: |  |  |  |
Raw materials |  | $ | 7,019 |  |  | $ | 7,388 |
Finished goods |  | 3,436 |  |  | 3,758 |
Work in progress |  | 2,698 |  |  | 2,720 |
|  | 13,153 |  |  | 13,866 |
Less allowance for obsolescence |  | (1,273) |  |  | (1,210) |
Total inventories, net |  | $ | 11,880 |  |  | $ | 12,656 |
|  | October 31, 2020 |  | January 31, 2020
|  | (in thousands)
Property and equipment: |  |  |  |
Marine seismic service equipment |  | $ | 6,970 |  |  | $ | 8,341 |
Land and buildings |  | 4,358 |  |  | 4,274 |
Furniture and fixtures |  | 9,661 |  |  | 9,364 |
Autos and trucks |  | 490 |  |  | 491 |
|  | 21,479 |  |  | 22,470 |
Accumulated depreciation and amortization |  | (16,525) |  |  | (17,051) |
Total property and equipment, net |  | $ | 4,954 |  |  | $ | 5,419 |
As of January 31, 2020, the Company completed an annual review of long-lived assets noting that the undiscounted future cash flows exceeded their carrying value and no impairment has been recorded. Subsequent to January 31, 2020, there was a significant deterioration in macroeconomic factors and a decline in the market value of the Company’s equity securities which indicated possible impairment of long-lived assets. However, an analysis of the estimated recoverable value of these long-lived assets indicated that there was no impairment.

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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