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Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Income Statement [Abstract]
Net sales	$ 26,013	$ 27,450	$ 84,114	$ 85,318
Costs of products sold	21,302	22,441	67,934	69,839
Gross profit	4,711	5,009	16,180	15,479
Operating expenses	3,773	4,054	11,676	12,205
Operating earnings	938	955	4,504	3,274
Other income	95	84	265	260
Interest expense	(116)	(80)	(276)	(295)
Earnings before income taxes	917	959	4,493	3,239
Income tax expense	292	177	1,505	962
Net earnings	625	782	2,988	2,277
Less: net earnings attributable to the noncontrolling interest	21	238	72	450
Net earnings attributable to Kewaunee Scientific Corporation	$ 604	$ 544	$ 2,916	$ 1,827
Net earnings per share attributable to Kewaunee Scientific Corporation stockholders
Basic	$ 0.23	$ 0.21	$ 1.12	$ 0.71
Diluted	$ 0.22	$ 0.21	$ 1.11	$ 0.71
Weighted average number of common shares outstanding
Basic	2,615	2,590	2,606	2,586
Diluted	2,645	2,604	2,627	2,596

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