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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Jan. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts | SCHEDULE II MITCHAM INDUSTRIES, INC. VALUATION AND QUALIFYING ACCOUNTS (in thousands)
Col. A | Col. B |  | Col. C(1) |  | Col. C(2) |  | Col. D |  | Col. E
Description | Balance at Beginning of Period |  | Charged to Costs and Expenses |  | Charged to Other Accounts |  | Deductions Describe |  | Balance at End of Period
Allowance for doubtful accounts |  |  |  |  |  |
January 31, 2020 | $ | 2,113 |  |  | 2,000 |  |  | — |  | (a) | (59 | ) | (b) | $ | 4,054 |
January 31, 2019 | $ | 6,167 |  |  | 212 |  |  | — |  | (a) | (4,266 | ) | (b) | $ | 2,113 |
January 31, 2018 | $ | 5,904 |  |  | 1,027 |  |  | (23 | ) | (a) | (741 | ) | (b) | $ | 6,167 |
Allowance for obsolete equipment and inventory |  |  |  |  |  |
January 31, 2020 | $ | 1,222 |  |  | 298 |  |  | 1 |  | (a) | (117 | ) | (c) | $ | 1,404 |
January 31, 2019 | $ | 1,675 |  |  | 132 |  |  | (32 | ) | (a) | (553 | ) | (c) | $ | 1,222 |
January 31, 2018 | $ | 952 |  |  | 989 |  |  | 20 |  | (a) | (286 | ) | (c) | $ | 1,675 |
(a) | Represents translation differences.
(b) | Represents recoveries and uncollectible accounts written off.
(c) | Represents sale or scrap of inventory and obsolete equipment.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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