CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND RETAINED EARNINGS (USD $)	3 Months Ended	6 Months Ended
Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2015	Jan. 31, 2014
Revenues
Rental income (Notes 4 and 8)	$ 4,412,233	$ 4,139,589	$ 8,752,590	$ 8,358,353
Recovery of real estate taxes			10,625mays_RecoveryOfRealEstateTaxes
Revenue to temporarily vacate lease (Note 13)	291,667mays_VacateLeaseRevenue		583,334mays_VacateLeaseRevenue
Total revenues	4,703,900us-gaap_RealEstateRevenueNet	4,139,589us-gaap_RealEstateRevenueNet	9,346,549us-gaap_RealEstateRevenueNet	8,358,353us-gaap_RealEstateRevenueNet
Expenses
Real estate operating expenses	2,470,736us-gaap_CostOfRealEstateRevenue	2,501,560us-gaap_CostOfRealEstateRevenue	4,794,934us-gaap_CostOfRealEstateRevenue	4,653,285us-gaap_CostOfRealEstateRevenue
Administrative and general expenses	1,139,437us-gaap_GeneralAndAdministrativeExpense	1,188,548us-gaap_GeneralAndAdministrativeExpense	2,122,730us-gaap_GeneralAndAdministrativeExpense	2,106,596us-gaap_GeneralAndAdministrativeExpense
Depreciation and amortization (Note 6)	443,822us-gaap_DepreciationAndAmortization	424,352us-gaap_DepreciationAndAmortization	884,807us-gaap_DepreciationAndAmortization	842,907us-gaap_DepreciationAndAmortization
Loss on disposition of property and equipment				4,291us-gaap_GainLossOnDispositionOfAssets
Total expenses	4,053,995us-gaap_OperatingExpenses	4,114,460us-gaap_OperatingExpenses	7,802,471us-gaap_OperatingExpenses	7,607,079us-gaap_OperatingExpenses
Income from operations before investment income, interest expense and income taxes	649,905us-gaap_OperatingIncomeLoss	25,129us-gaap_OperatingIncomeLoss	1,544,078us-gaap_OperatingIncomeLoss	751,274us-gaap_OperatingIncomeLoss
Investment income and interest expense:
Investment income (Note 3)	26,353	30,965	32,544	220,389
Interest expense (Notes 5, 7 and 10)	(92,345)us-gaap_InterestExpense	(113,144)us-gaap_InterestExpense	(201,037)us-gaap_InterestExpense	(211,689)us-gaap_InterestExpense
Interest Income (Expense), Net	(65,992)us-gaap_InterestIncomeExpenseNet	(82,179)us-gaap_InterestIncomeExpenseNet	(168,493)us-gaap_InterestIncomeExpenseNet	8,700us-gaap_InterestIncomeExpenseNet
Income (loss) from operations before income taxes	583,913	(57,050)	1,375,585	759,974
Income taxes provided	255,000us-gaap_IncomeTaxExpenseBenefit		608,000us-gaap_IncomeTaxExpenseBenefit	381,000us-gaap_IncomeTaxExpenseBenefit
Net income (loss)	328,913us-gaap_NetIncomeLoss	(57,050)us-gaap_NetIncomeLoss	767,585us-gaap_NetIncomeLoss	378,974us-gaap_NetIncomeLoss
Retained earnings, beginning of period	40,181,936	39,439,965	39,743,264	39,003,941
Retained earnings, end of period	$ 40,510,849	$ 39,382,915	$ 40,510,849	$ 39,382,915
Income (loss) per common share (Note 2)	$ 0.16us-gaap_EarningsPerShareBasic	$ (0.03)us-gaap_EarningsPerShareBasic	$ 0.38us-gaap_EarningsPerShareBasic	$ 0.19us-gaap_EarningsPerShareBasic
Dividends per share
Average common shares outstanding	2,015,780	2,015,780	2,015,780	2,015,780

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