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v2.4.0.6

Segment Reporting (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2013 | Oct. 31, 2012 | Jul. 31, 2012 | Apr. 30, 2012 | Jan. 31, 2012 | Oct. 31, 2011 | Jul. 31, 2011 | Apr. 30, 2011 | Jan. 31, 2013 | Jan. 31, 2012 | Jan. 31, 2011
Reconciliation of income before taxes |  |  |  |  |  |  |  |  |  |  |
Income before taxes |  |  |  |  |  |  |  |  | $ 13,524 | $ 34,330 | $ 6,794
Consolidated income before taxes | 3,365 | (2,178) | 1,274 | 11,063 | 14,645 | 9,056 | 2,168 | 8,461 | 13,524 | 34,330 | 6,794
Equipment Leasing [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation of income before taxes |  |  |  |  |  |  |  |  |  |  |
Income before taxes |  |  |  |  |  |  |  |  | 2,865 | 24,081 | 1,527
Seamap [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation of income before taxes |  |  |  |  |  |  |  |  |  |  |
Income before taxes |  |  |  |  |  |  |  |  | 10,835 | 10,195 | 5,402
Intersegment Sales Elimination [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation of income before taxes |  |  |  |  |  |  |  |  |  |  |
Consolidated income before taxes |  |  |  |  |  |  |  |  | $ (176) | $ 54 | $ (135)

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- Definition Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1(i) -Article 4 + Details
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