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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Jan. 31, 2017
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, 2017 |  | $ | 5,821 |  |  |  | 737 |  |  |  | (31 | )(a) |  |  | (623 | )(b) |  | $ | 5,904 |
January 31, 2016 |  | $ | 6,339 |  |  |  | 2,069 |  |  |  | 404 | (a) |  |  | (2,991 | )(b) |  | $ | 5,821 |
January 31, 2015 |  | $ | 3,833 |  |  |  | 2,834 |  |  |  | (332 | )(a) |  |  | 4 | (b) |  | $ | 6,339 |
Allowance for obsolete equipment and inventory |  |  |  |  |  |  |  |  |  |  |  |  |
January 31, 2017 |  | $ | 900 |  |  |  | 116 |  |  |  | (41 | )(a) |  |  | (23 | )(c) |  | $ | 952 |
January 31, 2016 |  | $ | 750 |  |  |  | 208 |  |  |  | (58 | )(a) |  |  | — | (c) |  | $ | 900 |
January 31, 2015 |  | $ | 1,032 |  |  |  | (60 | ) |  |  | (151 | )(a) |  |  | (71 | )(c) |  | $ | 750 |
(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 any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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