Asset management fees percentage rate.

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Consulting fee per month.

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Consulting fee quarterly installments.

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Consulting services expense.

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The aggregate costs related to management of owned properties during the reporting period.

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The expense incurred to persons or entities for securing insurance coverage for properties and subsidiaries.

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Amount of commissions expense incurred because the lessor of real estate obtained a lessee for a rental property through a real estate agent and generally recurring costs associated with operations.

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No definition available.

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The project fee that may be charged for real estate project.

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The fee expense for real estate redevelopment.

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Amount for accounts payable to related parties.

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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of commissions expense incurred because the lessor of real estate obtained a lessee for a rental property through a real estate agent.

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No definition available.

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Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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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.

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Fees charged annually for the professional services of a trustee, usually quoted as a percentage of the funds being managed. The fee for appointing an offshore Trustee is included in the trust price.

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Management agreement, fees and transactions with related party (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 28, 2018	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017	Oct. 30, 2013	Oct. 31, 2017	Nov. 30, 2016
Related Party Transaction [Line Items]
Asset management fees		$ 649,000	$ 593,000	$ 1,260,000	$ 1,156,000
Consulting services expense		4,200		4,200
Trustee fees and related interest payable in stock units				434,000
Secured loans receivable		$ 5,451,000		$ 5,451,000			$ 5,451,000	$ 5,451,000
Minimum [Member]
Related Party Transaction [Line Items]
Asset management fees percentage rate				4.00%
Maximum [Member]
Related Party Transaction [Line Items]
Asset management fees percentage rate				5.00%
Grande Rotunda, LLC [Member]
Related Party Transaction [Line Items]
Ownership by noncontrolling owners (percentage)		40.00%		40.00%
Ownership by parent (percentage)		60.00%		60.00%
Due to affiliate		$ 5,300,000		$ 5,300,000			5,200,000
Damascus Centre, LLC [Member]
Related Party Transaction [Line Items]
Ownership by noncontrolling owners (percentage)		30.00%		30.00%
Ownership by parent (percentage)		70.00%		70.00%
Managing Agent Hekemian & Co [Member]
Related Party Transaction [Line Items]
Asset management fees		$ 619,000	553,000	$ 1,194,000	1,074,000
Leasing commissions and reimbursement of operating expenses		130,000	198,000	270,000	397,000
Leasing commissions				522,500
Insurance commissions		17,000	33,000	49,000	55,000
Redevelopment fees		432,500	0	1,195,000	0
Consulting services expense				240,000
Grande Rotunda LLC Construction Loan [Member]
Related Party Transaction [Line Items]
Consulting services expense				400,000
Provident Bank [Member]
Related Party Transaction [Line Items]
Consulting services expense				32,500
Grande Rotunda LLC [Member]
Related Party Transaction [Line Items]
Fee amount	$ 900,000	45,000		1,400,000		$ 500,000
Affiliated Entity 1 [Member]
Related Party Transaction [Line Items]
Development fees included in accounts payable		900,000		900,000			$ 900,000
Hekemian and Resources [Member]
Related Party Transaction [Line Items]
Fee amount				900,000
Robert S. Hekemian [Member]
Related Party Transaction [Line Items]
Trustee fees and related interest payable in stock units		119,000	135,000	255,000	273,000
Consulting fee per month				5,000
Consulting fee quarterly installments				15,000
Robert S. Hekemian, Jr. [Member]
Related Party Transaction [Line Items]
Trustee fees and related interest payable in stock units		27,000	17,000	41,000	34,000
David Hekemian [Member]
Related Party Transaction [Line Items]
Trustee fees and related interest payable in stock units		$ 2,000	$ 0	$ 2,000	$ 0