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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (114)	$ (3,082)	$ (833)	$ (4,389)
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	(237)	(83)	(461)	(159)
Other comprehensive loss	(237)	(83)	(461)	(159)
Comprehensive loss, net of tax	(351)	(3,165)	(1,294)	(4,548)
Less: Comprehensive income attributable to the non-controlling interest	129	18	157	56
Comprehensive loss attributable to Kewaunee Scientific Corporation	$ (480)	$ (3,183)	$ (1,451)	$ (4,604)

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