Consolidated Statements of Operations - USD ($)	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Consolidated Statements of Operations
Revenues	$ 237,962,000	$ 225,245,000
Cost of revenues	177,177,000	163,868,000
Gross margin	60,785,000	61,377,000
Operating expenses:
Selling, general and administrative expenses	48,072,000	50,936,000
Income from operations	12,713,000	10,441,000
Other income (expense):
Net (loss) gain on trading securities	(807,000)	912,000
Loss on sale of property		(130,000)
Interest and other expense	(226,000)	(256,000)
Other (expense) income, net	(1,033,000)	526,000
Income before income taxes	11,680,000	10,967,000
Provision for income taxes	3,293,000	3,174,000
Net income	8,387,000	7,793,000
Cumulative preferred stock dividend	(76,000)	(76,000)
Net income attributable to common shareholders	$ 8,311,000	$ 7,717,000
Basic earnings per common share	$ 1.71	$ 1.59
Diluted earnings per common share	$ 1.71	$ 1.59
Basic weighted average common shares outstanding	4,861,590	4,861,590
Diluted weighted average common shares outstanding	4,861,590	4,861,590