Amortization period of deferred charges during the period.

No definition available.

Name:	MAYS_DeferredChargesAmortizationPeriod
Namespace Prefix:	MAYS_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of profit (loss) after Federal Home Loan Bank (FHLBank) assessments attributable to the parent.

+ References

No definition available.

+ Details

Name:	us-gaap_NetIncomeLossAttributableToParentNetOfFederalHomeLoanBankAssessments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-3

+ Details

Name:	us-gaap_OperatingLossCarryforwards
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

+ Details

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

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=MAYS_CityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

Summary of Significant Accounting Policies (Details Narrative) - USD ($)	3 Months Ended	12 Months Ended
	Oct. 31, 2024	Jul. 31, 2024
Property, Plant and Equipment [Line Items]
Federal net operating loss carryforward		$ 10,111,000
State [Member]
Property, Plant and Equipment [Line Items]
Net operating loss carryforwards		14,260,000
City [Member]
Property, Plant and Equipment [Line Items]
Net operating loss carryforwards		$ 11,736,000
Minimum [Member]
Property, Plant and Equipment [Line Items]
Deferred charges amortization period	5 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Deferred charges amortization period	21 years