Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
Revenues	$ 57,840	$ 51,723	$ 161,185	$ 138,935
Cost of revenues	41,715	36,647	116,439	99,231
Gross margin	16,125	15,076	44,746	39,704
Operating expenses:
Selling, general and administrative expenses	12,353	11,643	35,563	32,460
Income from operations	3,772	3,433	9,183	7,244
Other income (expense):
Net gain (loss) on trading securities	413	(65)	515	186
Interest and other (expense), net	(128)	(122)	(330)	(353)
Total other income (expense), net	285	(187)	185	(167)
Income before income taxes	4,057	3,246	9,368	7,077
Provision for income taxes	1,113	993	2,538	2,310
Net income	2,944	2,253	6,830	4,767
Cumulative preferred stock dividend	(19)	(19)	(57)	(57)
Net income attributable to common shareholders	$ 2,925	$ 2,234	$ 6,773	$ 4,710
Basic and diluted earnings per share:	$ 0.60	$ 0.46	$ 1.39	$ 0.97
Basic and diluted weighted average common shares outstanding	4,861,590	4,861,590	4,861,590	4,861,590