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Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014
Income Statement [Abstract]
Net sales	$ 31,037	$ 30,258	$ 62,126	$ 60,792
Costs of products sold	25,505	24,436	50,751	48,822
Gross profit	5,532	5,822	11,375	11,970
Operating expenses	4,403	3,950	8,722	8,298
Operating earnings	1,129	1,872	2,653	3,672
Other income	85	125	187	251
Interest expense	(61)	(102)	(153)	(183)
Earnings before income taxes	1,153	1,895	2,687	3,740
Income tax expense	446	667	1,017	1,252
Net earnings	707	1,228	1,670	2,488
Less: net earnings attributable to the noncontrolling interest	12	26	35	52
Net earnings attributable to Kewaunee Scientific Corporation	$ 695	$ 1,202	$ 1,635	$ 2,436
Net earnings per share attributable to Kewaunee Scientific Corporation stockholders
Basic	$ 0.26	$ 0.46	$ 0.62	$ 0.93
Diluted	$ 0.26	$ 0.45	$ 0.61	$ 0.92
Weighted average number of common shares outstanding
Basic	2,671	2,626	2,650	2,623
Diluted	2,690	2,659	2,674	2,655

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