CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
Revenues
Rental income	$ 5,046,867	$ 5,039,060	$ 9,881,861	$ 10,074,975
Total revenues	5,046,867	5,039,060	9,881,861	10,074,975
Expenses
Real estate operating expenses	3,585,546	3,568,752	7,168,163	6,817,346
Administrative and general expenses	1,343,669	1,311,011	2,513,192	2,526,646
Depreciation	445,504	394,977	889,443	782,387
Total expenses	5,374,719	5,274,740	10,570,798	10,126,379
Loss from operations	(327,852)	(235,680)	(688,937)	(51,404)
Investment income and interest expense:
Investment income	76,935	75,915	166,161	140,918
Change in fair value of marketable securities	238,969	82,536	24,015	63,250
Interest expense	(82,159)	(27,052)	(167,770)	(54,501)
Total investment income and interest expense	233,745	131,399	22,406	149,667
Income (loss) before income taxes	(94,107)	(104,281)	(666,531)	98,263
Income taxes (benefit)	(40,000)	(47,000)	(197,000)	27,000
Net income (loss)	$ (54,107)	$ (57,281)	$ (469,531)	$ 71,263
Income (loss) per common share, basic and diluted	$ (.02)	$ (.02)	$ (0.23)	$ 0.04
Average common shares outstanding, basic and diluted	2,015,780	2,015,780	2,015,780	2,015,780