Condensed Consolidated Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Condensed Consolidated Statements of Income
Net sales	$ 66,587,000	$ 55,751,000	$ 130,409,000	$ 109,154,000
Cost of sales	48,462,000	40,727,000	94,106,000	79,678,000
Gross margin	18,125,000	15,024,000	36,303,000	29,476,000
Operating expenses:
Selling, general and administrative expenses	13,439,000	12,540,000	22,334,000	25,221,000
Income from operations	4,686,000	2,484,000	13,969,000	4,255,000
Other income (expense):
Net (loss) gain on trading securities	(22,000)	(506,000)	(78,000)	(1,059,000)
Interest and other (expense)	(53,000)	(60,000)	(105,000)	(129,000)
Other (expense) income, net	(75,000)	(566,000)	(183,000)	(1,188,000)
Income before income taxes	4,611,000	1,918,000	13,786,000	3,067,000
Provision for income taxes	1,204,000	524,000	3,593,000	822,000
Net income	3,407,000	1,394,000	10,193,000	2,245,000
Cumulative preferred stock dividend	(19,000)	(19,000)	(38,000)	(38,000)
Net income attributable to common shareholders	$ 3,388,000	$ 1,375,000	$ 10,155,000	$ 2,207,000
Basic earnings per common share:	$ 0.70	$ 0.28	$ 2.09	$ 0.45
Diluted earnings per common share:	$ 0.70	$ 0.28	$ 2.09	$ 0.45
Basic weighted average common shares outstanding	4,861,590	4,861,590	4,861,590	4,861,590
Diluted weighted average common shares outstanding	4,901,590	4,901,590	4,901,590	4,901,590