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Balance Sheet | 3 Months Ended
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Apr. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Balance Sheet | Balance Sheet
| As of April 30, 2019 |  | As of January 31, 2019
| Current |  | Long-term |  | Total |  | Current |  | Long-term |  | Total
Accounts receivable | $ | 14,401 |  |  | $ | 465 |  |  | $ | 14,866 |  |  | $ | 14,195 |  |  | $ | 712 |  |  | $ | 14,907 |
Less allowance for doubtful accounts | (2,113 | ) |  | — |  |  | (2,113 | ) |  | (2,113 | ) |  | — |  |  | (2,113 | )
Accounts receivable net of allowance for doubtful accounts | $ | 12,288 |  |  | $ | 465 |  |  | $ | 12,753 |  |  | $ | 12,082 |  |  | $ | 712 |  |  | $ | 12,794 |
As of April 30, 2019, the Company has structured payment agreements with two customers totaling $2.6 million and $3.0 million due from three customers as of January 31, 2019. Payments expected to be received in more than one year have been classified as long-term receivables and total $465,000. The structured payment agreements bear interest at an average rate of approximately 3.1% and 3.6% as of April 30, 2019 and January 31, 2019, respectively. The remaining repayment terms range from four to 33 months.
|  | April 30, 2019 |  | January 31, 2019
|  | (in thousands)
Inventories: |  |  |  |
Raw materials |  | $ | 5,705 |  |  | $ | 5,446 |
Finished goods |  | 4,948 |  |  | 5,229 |
Work in progress |  | 1,679 |  |  | 1,322 |
|  | 12,332 |  |  | 11,997 |
Less allowance for obsolescence |  | (1,089 | ) |  | (1,223 | )
Total inventories, net |  | $ | 11,243 |  |  | $ | 10,774 |
|  | April 30, 2019 |  | January 31, 2019
|  | (in thousands)
Seismic equipment lease pool and property and equipment: |  |  |  |
Seismic equipment lease pool |  | $ | 144,991 |  |  | $ | 147,519 |
Land and buildings |  | 4,047 |  |  | 4,041 |
Furniture and fixtures |  | 10,087 |  |  | 9,897 |
Autos and trucks |  | 569 |  |  | 571 |
|  | 159,694 |  |  | 162,028 |
Accumulated depreciation and amortization |  | (146,857 | ) |  | (147,873 | )
Total seismic equipment lease pool and property and equipment, net |  | $ | 12,837 |  |  | $ | 14,155 |
As of January 31, 2019, 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. Since January 31, 2019 there have been no significant changes to the market, economic or legal environment in which the Company operates that would indicate additional impairment analysis is necessary as of April 30, 2019.

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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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