Condensed Consolidated Statements of Operations (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Feb. 28, 2018	Feb. 28, 2017
Income Statement [Abstract]
Net revenues	$ 7,356,715	$ 5,705,590	$ 14,425,496	$ 11,123,525
Cost of revenues	2,115,482	1,553,952	3,851,090	2,889,935
Gross margin	5,241,233	4,151,638	10,574,406	8,233,590
Operating expenses
Selling, general, and administrative	2,339,721	1,948,136	4,748,237	3,811,692
Research and development	484,330	408,536	845,146	698,836
Total operating expenses	2,824,051	2,356,672	5,593,383	4,510,528
Income from operations	2,417,182	1,794,966	4,981,023	3,723,062
Other income (expense)
Interest income	6,179	4,429	10,489	8,886
Interest expense	(38,188)	0	(76,658)	0
Gain (loss) on currency exchange	(584)	(14,441)	(13,262)	20,486
Total other income (expense)	(32,593)	(10,012)	(79,431)	29,372
Income before provision for income taxes	2,384,589	1,784,954	4,901,592	3,752,434
Benefit (Provision) for income taxes	1,090,198	(589,194)	289,198	(1,195,109)
Net Income	$ 3,474,787	$ 1,195,760	$ 5,190,790	$ 2,557,325
Earnings per share
Basic	$ 0.20	$ 0.07	$ 0.30	$ 0.15
Diluted	$ 0.19	$ 0.07	$ 0.29	$ 0.15
Weighted-average common shares outstanding
Basic	17,302,763	17,233,017	17,292,391	17,229,586
Diluted	17,855,351	17,438,508	17,843,345	17,421,457