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v3.10.0.1

Segment Information - Segment Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2018 | Jan. 31, 2018 | Oct. 31, 2017 | Jul. 31, 2017 | Apr. 30, 2017 | Jan. 31, 2017 | Oct. 31, 2016 | Jul. 31, 2016 | Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 44,508 | $ 38,190 | $ 41,471 | $ 33,881 | $ 34,579 | $ 30,371 | $ 36,329 | $ 37,279 | $ 158,050 | $ 138,558 | $ 128,626
Depreciation |  |  |  |  |  |  |  |  | 2,761 | 2,702 | 2,592
Earnings (loss) before income taxes |  |  |  |  |  |  |  |  | 9,480 | 6,746 | 5,739
Income tax expense (benefit) |  |  |  |  |  |  |  |  | 4,115 | 2,126 | 1,862
Net earnings attributable to noncontrolling interest | 57 | 35 | 41 | 44 | 7 | 17 | 51 | 30 | 177 | 105 | 75
Net earnings (loss) attributable to Kewaunee Scientific Corporation | 1,433 | $ 883 | $ 1,724 | $ 1,148 | 1,388 | $ 341 | $ 1,486 | $ 1,300 | 5,188 | 4,515 | 3,802
Segment assets | 84,358 |  |  |  | 80,916 |  |  |  | 84,358 | 80,916 | 72,405
Expenditures for segment assets |  |  |  |  |  |  |  |  | 3,395 | 2,611 | 2,187
Non-US [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 44,924 | 27,045 | 27,373
Corporate / Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intersegment revenues |  |  |  |  |  |  |  |  | (15,437) | (8,154) | (6,921)
Earnings (loss) before income taxes |  |  |  |  |  |  |  |  | (6,238) | (4,982) | (4,470)
Income tax expense (benefit) |  |  |  |  |  |  |  |  | (3,433) | (1,595) | (1,076)
Net earnings (loss) attributable to Kewaunee Scientific Corporation |  |  |  |  |  |  |  |  | (2,805) | (3,387) | (3,394)
Domestic [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 114,594 | 113,081 | 103,047
Intersegment revenues |  |  |  |  |  |  |  |  | 11,333 | 4,463 | 3,612
Depreciation |  |  |  |  |  |  |  |  | 2,532 | 2,478 | 2,375
Earnings (loss) before income taxes |  |  |  |  |  |  |  |  | 10,732 | 8,221 | 7,471
Income tax expense (benefit) |  |  |  |  |  |  |  |  | 5,892 | 2,522 | 1,834
Net earnings (loss) attributable to Kewaunee Scientific Corporation |  |  |  |  |  |  |  |  | 4,840 | 5,699 | 5,637
Segment assets | 60,879 |  |  |  | 57,246 |  |  |  | 60,879 | 57,246 | 54,030
Expenditures for segment assets |  |  |  |  |  |  |  |  | 2,826 | 2,572 | 1,995
Domestic [Member] | Operating Segments [Member] | Non-US [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 1,468 | 1,568 | 1,794
International [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 43,456 | 25,477 | 25,579
Intersegment revenues |  |  |  |  |  |  |  |  | 4,104 | 3,691 | 3,309
Depreciation |  |  |  |  |  |  |  |  | 229 | 224 | 217
Earnings (loss) before income taxes |  |  |  |  |  |  |  |  | 4,986 | 3,507 | 2,738
Income tax expense (benefit) |  |  |  |  |  |  |  |  | 1,656 | 1,199 | 1,104
Net earnings attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 177 | 105 | 75
Net earnings (loss) attributable to Kewaunee Scientific Corporation |  |  |  |  |  |  |  |  | 3,153 | 2,203 | 1,559
Segment assets | $ 23,479 |  |  |  | $ 23,670 |  |  |  | 23,479 | 23,670 | 18,375
Expenditures for segment assets |  |  |  |  |  |  |  |  | 569 | 39 | 192
International [Member] | Operating Segments [Member] | Non-US [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 43,456 | $ 25,477 | $ 25,579

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