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Balance Sheet - Continuing Operations (Tables) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2021 | Jan. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Schedule of Accounts Receivable |
|  | As of July 31, 2021 |  |  | As of January 31, 2021 |
|  | (in thousands) |
Accounts receivable |  | $ | 5,581 |  |  | $ | 5,695 |
Less allowance for doubtful accounts |  |  | (481 | ) |  |  | (948 | )
Accounts receivable net of allowance for doubtful accounts |  | $ | 5,100 |  |  | $ | 4,747 |
| Accounts receivables from continuing operations consisted of the following (in thousands):
|  | As of January 31, 2021 |  |  | As of January 31, 2020 |
|  | Current |  |  | Total |  |  | Current |  |  | Total |
Accounts receivable |  | $ | 5,695 |  |  | $ | 5,695 |  |  | $ | 9,001 |  |  | $ | 9,001 |
Less allowance for doubtful accounts |  |  | (948 | ) |  |  | (948 | ) |  |  | (2,378 | ) |  |  | (2,378 | )
Accounts receivable net of allowance for doubtful accounts |  | $ | 4,747 |  |  | $ | 4,747 |  |  | $ | 6,623 |  |  | $ | 6,623 |
Schedule of Inventories |
|  | July 31, 2021 |  |  | January 31, 2021 |
|  | (in thousands) |
Inventories: |  |  |  |  |  |  |  |
Raw materials |  | $ | 7,468 |  |  | $ | 6,905 |
Finished goods |  |  | 3,455 |  |  |  | 3,466 |
Work in progress |  |  | 2,404 |  |  |  | 2,445 |
|  |  | 13,327 |  |  |  | 12,816 |
Less allowance for obsolescence |  |  | (1,399 | ) |  |  | (1,363 | )
Total inventories, net |  | $ | 11,928 |  |  | $ | 11,453 |
| Inventories from continuing operations consisted of the following (in thousands):
|  | As of January 31, |
|  | 2021 |  |  | 2020 |
Raw materials |  | $ | 6,905 |  |  | $ | 7,388 |
Finished goods |  |  | 3,466 |  |  |  | 3,758 |
Work in progress |  |  | 2,445 |  |  |  | 2,720 |
Cost of inventories |  |  | 12,816 |  |  |  | 13,866 |
Less allowance for obsolescence |  |  | (1,363 | ) |  |  | (1,210 | )
Net inventories |  | $ | 11,453 |  |  | $ | 12,656 |
Schedule of Seismic Equipment Lease Pool and Property and Equipment |
|  | July 31, 2021 |  |  | January 31, 2021 |
|  | (in thousands) |
Property and equipment: |  |  |  |  |  |  |  |
Marine seismic service equipment |  | $ | 4,157 |  |  | $ | 5,969 |
Land and buildings |  |  | 4,422 |  |  |  | 4,354 |
Furniture and fixtures |  |  | 9,899 |  |  |  | 9,750 |
Autos and trucks |  |  | 491 |  |  |  | 491 |
|  |  | 18,969 |  |  |  | 20,564 |
Accumulated depreciation and amortization |  |  | (14,529 | ) |  |  | (15,813 | )
Total property and equipment, net |  | $ | 4,440 |  |  | $ | 4,751 |
| Property and equipment from continuing operations consisted of the following (in thousands)
|  | As of January 31, |
|  | 2021 |  |  | 2020 |
Marine seismic service equipment |  |  | 5,969 |  |  |  | 8,341 |
Land and buildings |  |  | 4,354 |  |  |  | 4,274 |
Furniture and fixtures |  |  | 9,750 |  |  |  | 9,364 |
Autos and trucks |  |  | 491 |  |  |  | 491 |
Cost of property and equipment |  |  | 20,564 |  |  |  | 22,470 |
Less accumulated depreciation |  |  | (15,813 | ) |  |  | (17,051 | )
Net book value of property and equipment |  | $ | 4,751 |  |  | $ | 5,419 |

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