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Subsequent Events (Details)	Aug. 26, 2025
Subsequent Events [Abstract]
Stock Dividend Payable, Percent	100.00%

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- Definition

Stock Dividend Payable, Percent

+ References

No definition available.

+ Details

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Namespace Prefix:	rex_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration