Represent the amount recorded as share subscriptions received for private placement.

No definition available.

Name:	ryes_AmountRecordedAsShareSubscriptionsReceivedForPrivatePlacement
Namespace Prefix:	ryes_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of finders warrants issued.

+ References

No definition available.

+ Details

Name:	ryes_ClassOfWarrantOrRightNumberOfFindersWarrantsIssued
Namespace Prefix:	ryes_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Finders and legal fees

+ References

No definition available.

+ Details

Name:	ryes_FindersAndLegalFees
Namespace Prefix:	ryes_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of unit of non-brokered private placement.

+ References

No definition available.

+ Details

Name:	ryes_NumberOfUnitOfNonBrokeredPrivatePlacement
Namespace Prefix:	ryes_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfPrivatePlacement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Date the equity-based award expires, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross number of share options (or share units) granted during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(01)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

+ Details

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

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=ryes_FinderWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=srt_DirectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_StockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SUBSEQUENT EVENT (Narrative) (Details)	1 Months Ended		3 Months Ended	12 Months Ended
SUBSEQUENT EVENT (Narrative) (Details)	Dec. 12, 2023 USD ($) $ / shares shares	Feb. 17, 2023 USD ($) $ / shares shares	Oct. 31, 2023 $ / shares shares	Jul. 31, 2023 $ / shares shares	Oct. 31, 2023 USD ($)	Jul. 31, 2022 $ / shares
Subsequent Event [Line Items]
Number of options granted \| shares			397,780	1,045,000
Weighted average exercise price of options granted \| $ / shares			$ 0.35	$ 0.72
Amount recorded as share subscriptions received for private placement \| $					$ 440,868
Warrant exercise price \| $ / shares			$ 0.91	$ 0.91		$ 0.95
Non-brokered private placement [Member] \| Finder Warrants [Member]
Subsequent Event [Line Items]
Finders and legal fees \| $		$ 4,014
Number of finders warrants issued \| shares		10,440
Non-brokered private placement [Member] \| One tranche [Member]
Subsequent Event [Line Items]
Gross proceeds from private placement \| $		$ 3,000,000
Number of units in non-brokered private placement \| shares		7,500,000
Sale of stock, price per share \| $ / shares		$ 0.4
Warrant exercise price \| $ / shares		$ 0.6
Non-brokered private placement [Member] \| One tranche [Member] \| Director [Member]
Subsequent Event [Line Items]
Gross proceeds from private placement \| $		$ 957,720
Number of units in non-brokered private placement \| shares		2,394,299
Subsequent Event [Member] \| Director [Member] \| Stock option [Member]
Subsequent Event [Line Items]
Number of options granted \| shares	707,752
Weighted average exercise price of options granted \| $ / shares	$ 0.25
Expiration date	Dec. 12, 2028
Subsequent Event [Member] \| Non-brokered private placement [Member] \| Finder Warrants [Member]
Subsequent Event [Line Items]
Finders and legal fees \| $	$ 6,480
Number of finders warrants issued \| shares	36,000
Subsequent Event [Member] \| Non-brokered private placement [Member] \| One tranche [Member]
Subsequent Event [Line Items]
Gross proceeds from private placement \| $	$ 967,957
Number of units in non-brokered private placement \| shares	5,377,541
Sale of stock, price per share \| $ / shares	$ 0.18
Warrant exercise price \| $ / shares	$ 0.26
Expiration date	Nov. 07, 2025