Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2019	Feb. 28, 2018
Revenues	$ 52,559	$ 45,041	$ 103,345	$ 87,212
Cost of revenues	38,047	32,592	74,724	62,584
Gross margin	14,512	12,449	28,621	24,628
Operating expenses:
Selling, general and administrative expenses	11,720	10,477	23,210	20,817
Income from operations	2,792	1,972	5,411	3,811
Other (expense) income:
Net (loss) gain on trading securities	(126)	48	102	251
Interest and other (expense)	(125)	(130)	(202)	(231)
Total other (expense) income	(251)	(82)	(100)	20
Income before income taxes	2,541	1,890	5,311	3,831
Provision for income taxes	580	571	1,425	1,317
Net income	1,961	1,319	3,886	2,514
Cumulative preferred stock dividend	(19)	(19)	(38)	(38)
Net income attributable to common shareholders	$ 1,942	$ 1,300	$ 3,848	$ 2,476
Basic and diluted earnings per share:	$ 0.40	$ 0.27	$ 0.79	$ 0.51
Basic and diluted weighted average common shares outstanding	4,861,590	4,861,590	4,861,590	4,861,590