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Description of Business and Summary of Significant Accounting Policies (Details) - Schedule of equipment, buildings, leasehold improvements, and furniture and fixtures	12 Months Ended
	Jul. 31, 2022
Building and improvements [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Equipment and furniture and fixtures, estimated useful lives	40 years
Tenant improvements [Member] | Minimum [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Equipment and furniture and fixtures, estimated useful lives	7 years
Tenant improvements [Member] | Maximum [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Equipment and furniture and fixtures, estimated useful lives	15 years
Other (primarily equipment and furniture and fixtures) [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Equipment and furniture and fixtures, estimated useful lives	5 years

X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
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X

- Details

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Namespace Prefix:
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
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X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=rfl_OtherprimarilyEquipmentAndFurnitureAndFixturesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: