Consolidated Statements of Operations - USD ($)	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Consolidated Statements of Operations
Revenues	$ 225,245,000	$ 221,241,000
Cost of revenues	163,868,000	160,008,000
Gross margin	61,377,000	61,233,000
Operating expenses:
Selling, general and administrative expenses	50,936,000	48,213,000
Income from operations	10,441,000	13,020,000
Other income (expense):
Net gain on trading securities	912,000	427,000
Loss on sale of property	(130,000)
Interest and other expense	(256,000)	(475,000)
Other income (expense), net	526,000	(48,000)
Income before income taxes	10,967,000	12,972,000
Provision for income taxes	3,174,000	3,540,000
Net income	7,793,000	9,432,000
Cumulative preferred stock dividend	(76,000)	(76,000)
Net income attributable to common shareholders for basic and diluted EPS computation	$ 7,717,000	$ 9,356,000
Basic and diluted earnings per common share	$ 1.59	$ 1.92
Basic and diluted weighted average common shares outstanding	4,861,590	4,861,590