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Subsequent Events - Schedule of Pro Forma Impact of the Split on Reported Earnings (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Schedule Of Pro Forma Impact Of The Split On Reported Earnings Abstract
Net income attributable to REX common shareholders	$ 7,111	$ 12,378	$ 15,789	$ 22,569
Pro forma weighted average shares outstanding – basic	33,010	35,095	33,388	35,055
Pro forma basic net income per share attributable to REX common shareholders	$ 220	$ 350	$ 470	$ 640
Pro forma weighted average shares outstanding – diluted	33,010	35,342	33,388	35,296
Pro forma diluted net income per share attributable to REX common shareholders	$ 220	$ 350	$ 470	$ 640

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Pro forma basic earnings per share or earnings per unit, which is commonly presented in initial public offerings based on the terms of the offering.

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Pro forma diluted earnings per share, which is commonly presented in initial public offerings.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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