Condensed Consolidated Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020
Condensed Consolidated Statements of Income
Net sales	$ 55,751,000	$ 56,828,000	$ 109,154,000	$ 112,868,000
Cost of sales	40,727,000	41,029,000	79,678,000	81,173,000
Gross margin	15,024,000	15,799,000	29,476,000	31,695,000
Operating expenses:
Selling, general and administrative expenses	12,540,000	12,673,000	25,221,000	25,275,000
Income from operations	2,484,000	3,126,000	4,255,000	6,420,000
Other income (expense):
Net (loss) gain on trading securities	(506,000)	471,000	(1,059,000)	391,000
Loss on sale of property				(102,000)
Interest and other (expense)	(60,000)	(65,000)	(129,000)	(184,000)
Other (expense) income, net	(566,000)	406,000	(1,188,000)	105,000
Income before income taxes	1,918,000	3,532,000	3,067,000	6,525,000
Provision for income taxes	524,000	934,000	822,000	2,010,000
Net income	1,394,000	2,598,000	2,245,000	4,515,000
Cumulative preferred stock dividend	(19,000)	(19,000)	(38,000)	(38,000)
Net income attributable to common shareholders	$ 1,375,000	$ 2,579,000	$ 2,207,000	$ 4,477,000
Basic and diluted earnings per share:	$ 0.28	$ 0.53	$ 0.45	$ 0.92
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